diff --git a/cmd/http-service/server/cluster.go b/cmd/http-service/server/cluster.go
index 1523f55f60c..0b36b75513f 100644
--- a/cmd/http-service/server/cluster.go
+++ b/cmd/http-service/server/cluster.go
@@ -1015,11 +1015,62 @@ func (s *ClusterServer) DeleteCluster(ctx context.Context, req *api.DeleteCluste
 		return &api.DeleteClusterResp{Success: false, Message: &message}, nil
 	}
 	// delete tm
+	if err := opCli.PingcapV1alpha1().TidbMonitors(req.ClusterId).Delete(ctx, tidbMonitorName, metav1.DeleteOptions{}); err != nil {
+		if apierrors.IsNotFound(err) {
+			logger.Warn("TidbMonitor not found", zap.Error(err))
+		} else {
+			logger.Error("Delete TidbMonitor failed", zap.Error(err))
+			setResponseStatusCodes(ctx, http.StatusInternalServerError)
+			message := fmt.Sprintf("delete TidbMonitor failed: %s", err.Error())
+			return &api.DeleteClusterResp{Success: false, Message: &message}, nil
+		}
+
+	}
 	// delete init and secret
+	if err := opCli.PingcapV1alpha1().TidbInitializers(req.ClusterId).Delete(ctx, tidbInitializerName, metav1.DeleteOptions{}); err != nil {
+		if apierrors.IsNotFound(err) {
+			logger.Warn("TidbInitializer not found", zap.Error(err))
+		} else {
+			logger.Error("Delete TidbInitializer failed", zap.Error(err))
+			setResponseStatusCodes(ctx, http.StatusInternalServerError)
+			message := fmt.Sprintf("delete TidbInitializer failed: %s", err.Error())
+			return &api.DeleteClusterResp{Success: false, Message: &message}, nil
+		}
+	}
+	if err := kubeCli.CoreV1().Secrets(req.ClusterId).Delete(ctx, tidbInitializerPasswordSecret, metav1.DeleteOptions{}); err != nil {
+		if apierrors.IsNotFound(err) {
+			logger.Warn("TidbInitializer password secret not found", zap.Error(err))
+		} else {
+			logger.Error("Delete TidbInitializer password secret failed", zap.Error(err))
+			setResponseStatusCodes(ctx, http.StatusInternalServerError)
+			message := fmt.Sprintf("delete TidbInitializer password secret failed: %s", err.Error())
+			return &api.DeleteClusterResp{Success: false, Message: &message}, nil
+		}
+	}
 	// delete tc
-	if _, err = opCli.PingcapV1alpha1().TidbMonitors(req.ClusterId).Get(ctx,req.ClusterId); err != nil {
-		if apierrors.IsAlreadyExists(err) {}
-	return nil, errors.New("DeleteCluster not implemented")
+	if err := opCli.PingcapV1alpha1().TidbClusters(req.ClusterId).Delete(ctx, tidbClusterName, metav1.DeleteOptions{}); err != nil {
+		if apierrors.IsNotFound(err) {
+			logger.Warn("TidbCluster not found", zap.Error(err))
+		} else {
+			logger.Error("Delete TidbCluster failed", zap.Error(err))
+			setResponseStatusCodes(ctx, http.StatusInternalServerError)
+			message := fmt.Sprintf("delete TidbCluster failed: %s", err.Error())
+			return &api.DeleteClusterResp{Success: false, Message: &message}, nil
+		}
+
+	}
+	// delete ns
+	if err := kubeCli.CoreV1().Namespaces().Delete(ctx, req.ClusterId, metav1.DeleteOptions{}); err != nil {
+		if apierrors.IsNotFound(err) {
+			logger.Warn("Namespace not found", zap.Error(err))
+		} else {
+			logger.Error("Delete Namespace failed", zap.Error(err))
+			setResponseStatusCodes(ctx, http.StatusInternalServerError)
+			message := fmt.Sprintf("delete Namespace failed: %s", err.Error())
+			return &api.DeleteClusterResp{Success: false, Message: &message}, nil
+		}
+	}
+	return &api.DeleteClusterResp{Success: true}, nil
 }
 
 // RestartCluster