diff --git a/.github/workflows/BE-deploy.yml b/.github/workflows/BE-deploy.yml
index 056c798b..216f0e6c 100644
--- a/.github/workflows/BE-deploy.yml
+++ b/.github/workflows/BE-deploy.yml
@@ -15,8 +15,15 @@ jobs:
       run: echo ${{ secrets.PACKAGE_ACCESS_TOKEN }} | docker login ghcr.io -u ${{ secrets.PACKAGE_USERNAME }} --password-stdin
     - name: Build and push Docker image
       run: |
+        echo "SERVER_PORT=$SERVER" >> ./nestjs-BE/server/.env
+        echo "JWT_SECRET=$JWT_SECRET" >> ./nestjs-BE/server/.env
+        echo "KAKAO_ADMIN_KEY=$KAKAO_ADMIN_KEY" >> ./nestjs-BE/server/.env
         docker build -t ghcr.io/${{ secrets.PACKAGE_USERNAME }}/mindsync ./nestjs-BE/server
         docker push ghcr.io/${{ secrets.PACKAGE_USERNAME }}/mindsync:latest
+      env:
+        SERVER_PORT: ${{ secrets.CONTAINER_PORT }}
+        JWT_SECRET: ${{ secrets.JWT_SECRET }}
+        KAKAO_ADMIN_KEY: ${{ secrets.KAKAO_ADMIN_KEY }}
 
   deploy:
     needs: build
diff --git a/nestjs-BE/server/.gitignore b/nestjs-BE/server/.gitignore
index 9751d2d5..2d2fb1cc 100644
--- a/nestjs-BE/server/.gitignore
+++ b/nestjs-BE/server/.gitignore
@@ -28,4 +28,7 @@ lerna-debug.log*
 *.sublime-workspace
 
 # IDE - VSCode
-/.vscode
\ No newline at end of file
+/.vscode
+
+# Environment Variable File
+.env
diff --git a/nestjs-BE/server/config/env.ts b/nestjs-BE/server/config/env.ts
new file mode 100644
index 00000000..eba1fb25
--- /dev/null
+++ b/nestjs-BE/server/config/env.ts
@@ -0,0 +1,10 @@
+import { config } from 'dotenv';
+
+interface CustomEnv {
+  [key: string]: string;
+}
+
+const customEnv: CustomEnv = {};
+config({ processEnv: customEnv });
+
+export default customEnv;
diff --git a/nestjs-BE/server/package-lock.json b/nestjs-BE/server/package-lock.json
index 6b32191a..0e96a0d1 100644
--- a/nestjs-BE/server/package-lock.json
+++ b/nestjs-BE/server/package-lock.json
@@ -11,11 +11,19 @@
       "dependencies": {
         "@nestjs/common": "^10.0.0",
         "@nestjs/core": "^10.0.0",
+        "@nestjs/jwt": "^10.2.0",
+        "@nestjs/passport": "^10.0.2",
         "@nestjs/platform-express": "^10.0.0",
         "@nestjs/platform-socket.io": "^10.2.8",
         "@nestjs/websockets": "^10.2.8",
+        "class-transformer": "^0.5.1",
+        "class-validator": "^0.14.0",
+        "dotenv": "^16.3.1",
+        "passport": "^0.6.0",
+        "passport-jwt": "^4.0.1",
         "reflect-metadata": "^0.1.13",
-        "rxjs": "^7.8.1"
+        "rxjs": "^7.8.1",
+        "uuid": "^9.0.1"
       },
       "devDependencies": {
         "@nestjs/cli": "^10.0.0",
@@ -24,6 +32,7 @@
         "@types/express": "^4.17.17",
         "@types/jest": "^29.5.2",
         "@types/node": "^20.3.1",
+        "@types/passport-jwt": "^3.0.13",
         "@types/supertest": "^2.0.12",
         "@typescript-eslint/eslint-plugin": "^6.0.0",
         "@typescript-eslint/parser": "^6.0.0",
@@ -1647,6 +1656,27 @@
         }
       }
     },
+    "node_modules/@nestjs/jwt": {
+      "version": "10.2.0",
+      "resolved": "https://registry.npmjs.org/@nestjs/jwt/-/jwt-10.2.0.tgz",
+      "integrity": "sha512-x8cG90SURkEiLOehNaN2aRlotxT0KZESUliOPKKnjWiyJOcWurkF3w345WOX0P4MgFzUjGoZ1Sy0aZnxeihT0g==",
+      "dependencies": {
+        "@types/jsonwebtoken": "9.0.5",
+        "jsonwebtoken": "9.0.2"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^8.0.0 || ^9.0.0 || ^10.0.0"
+      }
+    },
+    "node_modules/@nestjs/passport": {
+      "version": "10.0.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/passport/-/passport-10.0.2.tgz",
+      "integrity": "sha512-od31vfB2z3y05IDB5dWSbCGE2+pAf2k2WCBinNuTTOxN0O0+wtO1L3kawj/aCW3YR9uxsTOVbTDwtwgpNNsnjQ==",
+      "peerDependencies": {
+        "@nestjs/common": "^8.0.0 || ^9.0.0 || ^10.0.0",
+        "passport": "^0.4.0 || ^0.5.0 || ^0.6.0"
+      }
+    },
     "node_modules/@nestjs/platform-express": {
       "version": "10.2.8",
       "resolved": "https://registry.npmjs.org/@nestjs/platform-express/-/platform-express-10.2.8.tgz",
@@ -2069,6 +2099,14 @@
       "integrity": "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==",
       "dev": true
     },
+    "node_modules/@types/jsonwebtoken": {
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/@types/jsonwebtoken/-/jsonwebtoken-9.0.5.tgz",
+      "integrity": "sha512-VRLSGzik+Unrup6BsouBeHsf4d1hOEgYWTm/7Nmw1sXoN1+tRly/Gy/po3yeahnP4jfnQWWAhQAqcNfH7ngOkA==",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/mime": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/@types/mime/-/mime-1.3.5.tgz",
@@ -2083,6 +2121,36 @@
         "undici-types": "~5.26.4"
       }
     },
+    "node_modules/@types/passport": {
+      "version": "1.0.16",
+      "resolved": "https://registry.npmjs.org/@types/passport/-/passport-1.0.16.tgz",
+      "integrity": "sha512-FD0qD5hbPWQzaM0wHUnJ/T0BBCJBxCeemtnCwc/ThhTg3x9jfrAcRUmj5Dopza+MfFS9acTe3wk7rcVnRIp/0A==",
+      "dev": true,
+      "dependencies": {
+        "@types/express": "*"
+      }
+    },
+    "node_modules/@types/passport-jwt": {
+      "version": "3.0.13",
+      "resolved": "https://registry.npmjs.org/@types/passport-jwt/-/passport-jwt-3.0.13.tgz",
+      "integrity": "sha512-fjHaC6Bv8EpMMqzTnHP32SXlZGaNfBPC/Po5dmRGYi2Ky7ljXPbGnOy+SxZqa6iZvFgVhoJ1915Re3m93zmcfA==",
+      "dev": true,
+      "dependencies": {
+        "@types/express": "*",
+        "@types/jsonwebtoken": "*",
+        "@types/passport-strategy": "*"
+      }
+    },
+    "node_modules/@types/passport-strategy": {
+      "version": "0.2.38",
+      "resolved": "https://registry.npmjs.org/@types/passport-strategy/-/passport-strategy-0.2.38.tgz",
+      "integrity": "sha512-GC6eMqqojOooq993Tmnmp7AUTbbQSgilyvpCYQjT+H6JfG/g6RGc7nXEniZlp0zyKJ0WUdOiZWLBZft9Yug1uA==",
+      "dev": true,
+      "dependencies": {
+        "@types/express": "*",
+        "@types/passport": "*"
+      }
+    },
     "node_modules/@types/qs": {
       "version": "6.9.10",
       "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.10.tgz",
@@ -2147,6 +2215,11 @@
         "@types/superagent": "*"
       }
     },
+    "node_modules/@types/validator": {
+      "version": "13.11.7",
+      "resolved": "https://registry.npmjs.org/@types/validator/-/validator-13.11.7.tgz",
+      "integrity": "sha512-q0JomTsJ2I5Mv7dhHhQLGjMvX0JJm5dyZ1DXQySIUzU1UlwzB8bt+R6+LODUbz0UDIOvEzGc28tk27gBJw2N8Q=="
+    },
     "node_modules/@types/yargs": {
       "version": "17.0.31",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-17.0.31.tgz",
@@ -3060,6 +3133,11 @@
         "ieee754": "^1.1.13"
       }
     },
+    "node_modules/buffer-equal-constant-time": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
+      "integrity": "sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA=="
+    },
     "node_modules/buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -3237,6 +3315,21 @@
       "integrity": "sha512-0TNiGstbQmCFwt4akjjBg5pLRTSyj/PkWQ1ZoO2zntmg9yLqSRxwEa4iCfQLGjqhiqBfOJa7W/E8wfGrTDmlZQ==",
       "dev": true
     },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw=="
+    },
+    "node_modules/class-validator": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/class-validator/-/class-validator-0.14.0.tgz",
+      "integrity": "sha512-ct3ltplN8I9fOwUd8GrP8UQixwff129BkEtuWDKL5W45cQuLd19xqmTLu5ge78YDm/fdje6FMt0hGOhl0lii3A==",
+      "dependencies": {
+        "@types/validator": "^13.7.10",
+        "libphonenumber-js": "^1.10.14",
+        "validator": "^13.7.0"
+      }
+    },
     "node_modules/cli-cursor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",
@@ -3872,12 +3965,31 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.3.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.3.1.tgz",
+      "integrity": "sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/motdotla/dotenv?sponsor=1"
+      }
+    },
     "node_modules/eastasianwidth": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz",
       "integrity": "sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==",
       "dev": true
     },
+    "node_modules/ecdsa-sig-formatter": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz",
+      "integrity": "sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==",
+      "dependencies": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -6181,6 +6293,46 @@
         "graceful-fs": "^4.1.6"
       }
     },
+    "node_modules/jsonwebtoken": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-9.0.2.tgz",
+      "integrity": "sha512-PRp66vJ865SSqOlgqS8hujT5U4AOgMfhrwYIuIhfKaoSCZcirrmASQr8CX7cUg+RMih+hgznrjp99o+W4pJLHQ==",
+      "dependencies": {
+        "jws": "^3.2.2",
+        "lodash.includes": "^4.3.0",
+        "lodash.isboolean": "^3.0.3",
+        "lodash.isinteger": "^4.0.4",
+        "lodash.isnumber": "^3.0.3",
+        "lodash.isplainobject": "^4.0.6",
+        "lodash.isstring": "^4.0.1",
+        "lodash.once": "^4.0.0",
+        "ms": "^2.1.1",
+        "semver": "^7.5.4"
+      },
+      "engines": {
+        "node": ">=12",
+        "npm": ">=6"
+      }
+    },
+    "node_modules/jwa": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.1.tgz",
+      "integrity": "sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==",
+      "dependencies": {
+        "buffer-equal-constant-time": "1.0.1",
+        "ecdsa-sig-formatter": "1.0.11",
+        "safe-buffer": "^5.0.1"
+      }
+    },
+    "node_modules/jws": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/jws/-/jws-3.2.2.tgz",
+      "integrity": "sha512-YHlZCB6lMTllWDtSPHz/ZXTsi8S00usEV6v1tjq8tOUZzw7DpSDWVXjXDre6ed1w/pd495ODpHZYSdkRTsa0HA==",
+      "dependencies": {
+        "jwa": "^1.4.1",
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "node_modules/keyv": {
       "version": "4.5.4",
       "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
@@ -6221,6 +6373,11 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/libphonenumber-js": {
+      "version": "1.10.51",
+      "resolved": "https://registry.npmjs.org/libphonenumber-js/-/libphonenumber-js-1.10.51.tgz",
+      "integrity": "sha512-vY2I+rQwrDQzoPds0JeTEpeWzbUJgqoV0O4v31PauHBb/e+1KCXKylHcDnBMgJZ9fH9mErsEbROJY3Z3JtqEmg=="
+    },
     "node_modules/lines-and-columns": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/lines-and-columns/-/lines-and-columns-1.2.4.tgz",
@@ -6257,6 +6414,36 @@
       "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
+    "node_modules/lodash.includes": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/lodash.includes/-/lodash.includes-4.3.0.tgz",
+      "integrity": "sha512-W3Bx6mdkRTGtlJISOvVD/lbqjTlPPUDTMnlXZFnVwi9NKJ6tiAk6LVdlhZMm17VZisqhKcgzpO5Wz91PCt5b0w=="
+    },
+    "node_modules/lodash.isboolean": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz",
+      "integrity": "sha512-Bz5mupy2SVbPHURB98VAcw+aHh4vRV5IPNhILUCsOzRmsTmSQ17jIuqopAentWoehktxGd9e/hbIXq980/1QJg=="
+    },
+    "node_modules/lodash.isinteger": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/lodash.isinteger/-/lodash.isinteger-4.0.4.tgz",
+      "integrity": "sha512-DBwtEWN2caHQ9/imiNeEA5ys1JoRtRfY3d7V9wkqtbycnAmTvRRmbHKDV4a0EYc678/dia0jrte4tjYwVBaZUA=="
+    },
+    "node_modules/lodash.isnumber": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/lodash.isnumber/-/lodash.isnumber-3.0.3.tgz",
+      "integrity": "sha512-QYqzpfwO3/CWf3XP+Z+tkQsfaLL/EnUlXWVkIk5FUPc4sBdTehEqZONuyRt2P67PXAk+NXmTBcc97zw9t1FQrw=="
+    },
+    "node_modules/lodash.isplainobject": {
+      "version": "4.0.6",
+      "resolved": "https://registry.npmjs.org/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz",
+      "integrity": "sha512-oSXzaWypCMHkPC3NvBEaPHf0KsA5mvPrOPgQWDsbg8n7orZ290M0BmC/jgRZ4vcJ6DTAhjrsSYgdsW/F+MFOBA=="
+    },
+    "node_modules/lodash.isstring": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/lodash.isstring/-/lodash.isstring-4.0.1.tgz",
+      "integrity": "sha512-0wJxfxH1wgO3GrbuP+dTTk7op+6L41QCXbGINEmD+ny/G/eCqGzxyCsh7159S+mgDDcoarnBw6PC1PS5+wUGgw=="
+    },
     "node_modules/lodash.memoize": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
@@ -6269,6 +6456,11 @@
       "integrity": "sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==",
       "dev": true
     },
+    "node_modules/lodash.once": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/lodash.once/-/lodash.once-4.1.1.tgz",
+      "integrity": "sha512-Sb487aTOCr9drQVL8pIxOzVhafOjZN9UU54hiN8PU3uAiSV7lx1yYNpbNmex2PK6dSJoNTSJUUswT651yww3Mg=="
+    },
     "node_modules/log-symbols": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-4.1.0.tgz",
@@ -6822,6 +7014,40 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/passport": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/passport/-/passport-0.6.0.tgz",
+      "integrity": "sha512-0fe+p3ZnrWRW74fe8+SvCyf4a3Pb2/h7gFkQ8yTJpAO50gDzlfjZUZTO1k5Eg9kUct22OxHLqDZoKUWRHOh9ug==",
+      "dependencies": {
+        "passport-strategy": "1.x.x",
+        "pause": "0.0.1",
+        "utils-merge": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/jaredhanson"
+      }
+    },
+    "node_modules/passport-jwt": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/passport-jwt/-/passport-jwt-4.0.1.tgz",
+      "integrity": "sha512-UCKMDYhNuGOBE9/9Ycuoyh7vP6jpeTp/+sfMJl7nLff/t6dps+iaeE0hhNkKN8/HZHcJ7lCdOyDxHdDoxoSvdQ==",
+      "dependencies": {
+        "jsonwebtoken": "^9.0.0",
+        "passport-strategy": "^1.0.0"
+      }
+    },
+    "node_modules/passport-strategy": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/passport-strategy/-/passport-strategy-1.0.0.tgz",
+      "integrity": "sha512-CB97UUvDKJde2V0KDWWB3lyf6PC3FaZP7YxZ2G8OAtn9p4HI9j9JLP9qjOGZFvyl8uwNT8qM+hGnz/n16NI7oA==",
+      "engines": {
+        "node": ">= 0.4.0"
+      }
+    },
     "node_modules/path-exists": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
@@ -6894,6 +7120,11 @@
         "node": ">=8"
       }
     },
+    "node_modules/pause": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/pause/-/pause-0.0.1.tgz",
+      "integrity": "sha512-KG8UEiEVkR3wGEb4m5yZkVCzigAD+cVEJck2CzYZO37ZGJfctvVptVO192MwrtPhzONn6go8ylnOdMhKqi4nfg=="
+    },
     "node_modules/picocolors": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
@@ -7553,7 +7784,6 @@
       "version": "7.5.4",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
       "integrity": "sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==",
-      "dev": true,
       "dependencies": {
         "lru-cache": "^6.0.0"
       },
@@ -7568,7 +7798,6 @@
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
       "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
-      "dev": true,
       "dependencies": {
         "yallist": "^4.0.0"
       },
@@ -7579,8 +7808,7 @@
     "node_modules/semver/node_modules/yallist": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-      "dev": true
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
     },
     "node_modules/send": {
       "version": "0.18.0",
@@ -8607,6 +8835,18 @@
         "node": ">= 0.4.0"
       }
     },
+    "node_modules/uuid": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
+      "integrity": "sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/v8-compile-cache-lib": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
@@ -8627,6 +8867,14 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/validator": {
+      "version": "13.11.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.11.0.tgz",
+      "integrity": "sha512-Ii+sehpSfZy+At5nPdnyMhx78fEoPDkR2XW/zimHEL3MyGJQOCQ7WeP20jPYRz7ZCpcKLB21NxuXHF3bxjStBQ==",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
diff --git a/nestjs-BE/server/package.json b/nestjs-BE/server/package.json
index 4352ced4..795405d1 100644
--- a/nestjs-BE/server/package.json
+++ b/nestjs-BE/server/package.json
@@ -22,11 +22,19 @@
   "dependencies": {
     "@nestjs/common": "^10.0.0",
     "@nestjs/core": "^10.0.0",
+    "@nestjs/jwt": "^10.2.0",
+    "@nestjs/passport": "^10.0.2",
     "@nestjs/platform-express": "^10.0.0",
     "@nestjs/platform-socket.io": "^10.2.8",
     "@nestjs/websockets": "^10.2.8",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.0",
+    "dotenv": "^16.3.1",
+    "passport": "^0.6.0",
+    "passport-jwt": "^4.0.1",
     "reflect-metadata": "^0.1.13",
-    "rxjs": "^7.8.1"
+    "rxjs": "^7.8.1",
+    "uuid": "^9.0.1"
   },
   "devDependencies": {
     "@nestjs/cli": "^10.0.0",
@@ -35,6 +43,7 @@
     "@types/express": "^4.17.17",
     "@types/jest": "^29.5.2",
     "@types/node": "^20.3.1",
+    "@types/passport-jwt": "^3.0.13",
     "@types/supertest": "^2.0.12",
     "@typescript-eslint/eslint-plugin": "^6.0.0",
     "@typescript-eslint/parser": "^6.0.0",
diff --git a/nestjs-BE/server/src/app.controller.ts b/nestjs-BE/server/src/app.controller.ts
index cce879ee..4a545d13 100644
--- a/nestjs-BE/server/src/app.controller.ts
+++ b/nestjs-BE/server/src/app.controller.ts
@@ -1,12 +1,19 @@
 import { Controller, Get } from '@nestjs/common';
 import { AppService } from './app.service';
+import { Public } from './auth/public.decorator';
 
 @Controller()
 export class AppController {
   constructor(private readonly appService: AppService) {}
 
+  @Public()
   @Get()
   getHello(): string {
     return this.appService.getHello();
   }
+
+  @Get('login-test')
+  authTest(): string {
+    return 'login success';
+  }
 }
diff --git a/nestjs-BE/server/src/app.module.ts b/nestjs-BE/server/src/app.module.ts
index b919faf3..2baa726c 100644
--- a/nestjs-BE/server/src/app.module.ts
+++ b/nestjs-BE/server/src/app.module.ts
@@ -2,9 +2,11 @@ import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { BoardGateway } from './board/board.gateway';
+import { AuthModule } from './auth/auth.module';
+import { UsersModule } from './users/users.module';
 
 @Module({
-  imports: [],
+  imports: [AuthModule, UsersModule],
   controllers: [AppController],
   providers: [AppService, BoardGateway],
 })
diff --git a/nestjs-BE/server/src/auth/auth.controller.ts b/nestjs-BE/server/src/auth/auth.controller.ts
new file mode 100644
index 00000000..ee23c675
--- /dev/null
+++ b/nestjs-BE/server/src/auth/auth.controller.ts
@@ -0,0 +1,45 @@
+import {
+  Controller,
+  Post,
+  Request,
+  UseGuards,
+  Get,
+  Body,
+  Query,
+  NotFoundException,
+} from '@nestjs/common';
+import { AuthService } from './auth.service';
+import { JwtAuthGuard } from './jwt-auth.guard';
+import { Public } from './public.decorator';
+import { KakaoUserDto } from './dto/kakao-user.dto';
+import { stringify } from 'qs';
+import { UsersService } from 'src/users/users.service';
+
+@Controller('auth')
+export class AuthController {
+  constructor(
+    private authService: AuthService,
+    private usersService: UsersService,
+  ) {}
+
+  @Public()
+  @Post('kakao-oauth')
+  async kakaoLogin(@Body() kakaoUserDto: KakaoUserDto) {
+    const kakaoUserAccount = await this.authService.getKakaoAccount(
+      kakaoUserDto.kakaoUserId,
+    );
+    if (!kakaoUserAccount) throw new NotFoundException();
+    let user = await this.usersService.findOne(kakaoUserAccount.email);
+    if (!user) {
+      this.usersService.createOne(kakaoUserAccount.email);
+      user = await this.usersService.findOne(kakaoUserAccount.email);
+    }
+    return this.authService.login(user);
+  }
+
+  @UseGuards(JwtAuthGuard)
+  @Get('profile')
+  getProfile(@Request() req) {
+    return req.user;
+  }
+}
diff --git a/nestjs-BE/server/src/auth/auth.module.ts b/nestjs-BE/server/src/auth/auth.module.ts
new file mode 100644
index 00000000..b8d0644b
--- /dev/null
+++ b/nestjs-BE/server/src/auth/auth.module.ts
@@ -0,0 +1,29 @@
+import { Module } from '@nestjs/common';
+import { AuthController } from './auth.controller';
+import { AuthService } from './auth.service';
+import { UsersModule } from 'src/users/users.module';
+import { PassportModule } from '@nestjs/passport';
+import { JwtModule } from '@nestjs/jwt';
+import { jwtConstants } from './constants';
+import { JwtStrategy } from './jwt.strategy';
+import { APP_GUARD } from '@nestjs/core';
+import { JwtAuthGuard } from './jwt-auth.guard';
+
+@Module({
+  imports: [
+    UsersModule,
+    PassportModule,
+    JwtModule.register({
+      secret: jwtConstants.secret,
+      signOptions: { expiresIn: '60s' },
+    }),
+  ],
+  controllers: [AuthController],
+  providers: [
+    AuthService,
+    JwtStrategy,
+    { provide: APP_GUARD, useClass: JwtAuthGuard },
+  ],
+  exports: [AuthService],
+})
+export class AuthModule {}
diff --git a/nestjs-BE/server/src/auth/auth.service.ts b/nestjs-BE/server/src/auth/auth.service.ts
new file mode 100644
index 00000000..77259538
--- /dev/null
+++ b/nestjs-BE/server/src/auth/auth.service.ts
@@ -0,0 +1,30 @@
+import { Injectable } from '@nestjs/common';
+import { JwtService } from '@nestjs/jwt';
+import { kakaoOauthConstants } from './constants';
+import { stringify } from 'qs';
+
+@Injectable()
+export class AuthService {
+  constructor(private jwtService: JwtService) {}
+
+  async getKakaoAccount(kakaoUserId: number) {
+    const url = `https://kapi.kakao.com/v2/user/me`;
+    const queryParams = { target_id_type: 'user_id', target_id: kakaoUserId };
+    const response = await fetch(url, {
+      method: 'POST',
+      headers: {
+        Authorization: `KakaoAK ${kakaoOauthConstants.adminKey}`,
+        'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
+      },
+      body: stringify(queryParams),
+    });
+    const responseBody = await response.json();
+    if (!response.ok) return null;
+    return responseBody.kakao_account;
+  }
+
+  async login(user: any) {
+    const payload = { sub: user.uuid, email: user.email };
+    return { access_token: await this.jwtService.signAsync(payload) };
+  }
+}
diff --git a/nestjs-BE/server/src/auth/constants.ts b/nestjs-BE/server/src/auth/constants.ts
new file mode 100644
index 00000000..0a0cd1e1
--- /dev/null
+++ b/nestjs-BE/server/src/auth/constants.ts
@@ -0,0 +1,9 @@
+import customEnv from 'config/env';
+
+export const jwtConstants = {
+  secret: customEnv.JWT_SECRET,
+};
+
+export const kakaoOauthConstants = {
+  adminKey: customEnv.KAKAO_ADMIN_KEY,
+};
diff --git a/nestjs-BE/server/src/auth/dto/kakao-user.dto.ts b/nestjs-BE/server/src/auth/dto/kakao-user.dto.ts
new file mode 100644
index 00000000..e4173266
--- /dev/null
+++ b/nestjs-BE/server/src/auth/dto/kakao-user.dto.ts
@@ -0,0 +1,6 @@
+import { IsNumber } from 'class-validator';
+
+export class KakaoUserDto {
+  @IsNumber()
+  kakaoUserId: number;
+}
diff --git a/nestjs-BE/server/src/auth/jwt-auth.guard.ts b/nestjs-BE/server/src/auth/jwt-auth.guard.ts
new file mode 100644
index 00000000..b94a54e9
--- /dev/null
+++ b/nestjs-BE/server/src/auth/jwt-auth.guard.ts
@@ -0,0 +1,28 @@
+import {
+  Injectable,
+  ExecutionContext,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { AuthGuard } from '@nestjs/passport';
+import { IS_PUBLIC_KEY } from './public.decorator';
+
+@Injectable()
+export class JwtAuthGuard extends AuthGuard('jwt') {
+  constructor(private reflector: Reflector) {
+    super();
+  }
+  canActivate(context: ExecutionContext) {
+    const isPublic = this.reflector.getAllAndOverride<boolean>(IS_PUBLIC_KEY, [
+      context.getHandler(),
+      context.getClass(),
+    ]);
+    if (isPublic) return true;
+    return super.canActivate(context);
+  }
+
+  handleRequest(err, user) {
+    if (err || !user) throw err || new UnauthorizedException();
+    return user;
+  }
+}
diff --git a/nestjs-BE/server/src/auth/jwt.strategy.ts b/nestjs-BE/server/src/auth/jwt.strategy.ts
new file mode 100644
index 00000000..a929fb88
--- /dev/null
+++ b/nestjs-BE/server/src/auth/jwt.strategy.ts
@@ -0,0 +1,19 @@
+import { Injectable } from '@nestjs/common';
+import { ExtractJwt, Strategy } from 'passport-jwt';
+import { PassportStrategy } from '@nestjs/passport';
+import { jwtConstants } from './constants';
+
+@Injectable()
+export class JwtStrategy extends PassportStrategy(Strategy) {
+  constructor() {
+    super({
+      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
+      ignoreExpiration: false,
+      secretOrKey: jwtConstants.secret,
+    });
+  }
+
+  async validate(payload: any) {
+    return { uuid: payload.sub, email: payload.email };
+  }
+}
diff --git a/nestjs-BE/server/src/auth/public.decorator.ts b/nestjs-BE/server/src/auth/public.decorator.ts
new file mode 100644
index 00000000..b3845e12
--- /dev/null
+++ b/nestjs-BE/server/src/auth/public.decorator.ts
@@ -0,0 +1,4 @@
+import { SetMetadata } from '@nestjs/common';
+
+export const IS_PUBLIC_KEY = 'isPublic';
+export const Public = () => SetMetadata(IS_PUBLIC_KEY, true);
diff --git a/nestjs-BE/server/src/main.ts b/nestjs-BE/server/src/main.ts
index 6f57e2d4..e45fec4a 100644
--- a/nestjs-BE/server/src/main.ts
+++ b/nestjs-BE/server/src/main.ts
@@ -1,10 +1,9 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
-
-const PORT: number = 3000;
+import customEnv from 'config/env';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(PORT);
+  await app.listen(customEnv.SERVER_PORT);
 }
 bootstrap();
diff --git a/nestjs-BE/server/src/users/users.module.ts b/nestjs-BE/server/src/users/users.module.ts
new file mode 100644
index 00000000..8fa904f1
--- /dev/null
+++ b/nestjs-BE/server/src/users/users.module.ts
@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { UsersService } from './users.service';
+
+@Module({
+  providers: [UsersService],
+  exports: [UsersService],
+})
+export class UsersModule {}
diff --git a/nestjs-BE/server/src/users/users.service.ts b/nestjs-BE/server/src/users/users.service.ts
new file mode 100644
index 00000000..4d553421
--- /dev/null
+++ b/nestjs-BE/server/src/users/users.service.ts
@@ -0,0 +1,20 @@
+import { Injectable } from '@nestjs/common';
+import { v4 } from 'uuid';
+
+export type User = {
+  uuid: string;
+  email: string;
+};
+
+@Injectable()
+export class UsersService {
+  private readonly users: User[] = [];
+
+  async findOne(email: string): Promise<User | undefined> {
+    return this.users.find((user) => user.email === email);
+  }
+
+  createOne(email: string) {
+    this.users.push({ uuid: v4(), email });
+  }
+}