diff --git a/src/core/api/harborapi_test.go b/src/core/api/harborapi_test.go
index ed67e8577..ec9569b9d 100644
--- a/src/core/api/harborapi_test.go
+++ b/src/core/api/harborapi_test.go
@@ -115,7 +115,6 @@ func init() {
 	beego.Router("/api/"+api.APIVersion+"/chartrepo/:repo/charts/:name/:version/labels", chartLabelAPIType, "get:GetLabels;post:MarkLabel")
 	beego.Router("/api/"+api.APIVersion+"/chartrepo/:repo/charts/:name/:version/labels/:id([0-9]+)", chartLabelAPIType, "delete:RemoveLabel")
 
-	beego.Router("/api/internal/switchquota", &InternalAPI{}, "put:SwitchQuota")
 	beego.Router("/api/internal/syncquota", &InternalAPI{}, "post:SyncQuota")
 
 	// Init user Info
diff --git a/src/core/api/internal.go b/src/core/api/internal.go
index 6d6cd6518..12ab4c19c 100644
--- a/src/core/api/internal.go
+++ b/src/core/api/internal.go
@@ -69,40 +69,6 @@ func (ia *InternalAPI) RenameAdmin() {
 	ia.DestroySession()
 }
 
-// QuotaSwitcher ...
-type QuotaSwitcher struct {
-	Enabled bool
-}
-
-// SwitchQuota ...
-func (ia *InternalAPI) SwitchQuota() {
-	var req QuotaSwitcher
-	if err := ia.DecodeJSONReq(&req); err != nil {
-		ia.SendBadRequestError(err)
-		return
-	}
-	ctx := orm.NewContext(ia.Ctx.Request.Context(), o.NewOrm())
-	cur := config.ReadOnly(ctx)
-	// quota per project from disable to enable, it needs to update the quota usage bases on the DB records.
-	if !config.QuotaPerProjectEnable(ctx) && req.Enabled {
-		if !cur {
-			config.GetCfgManager(ctx).Set(ctx, common.ReadOnly, true)
-			config.GetCfgManager(ctx).Save(ctx)
-		}
-		if err := quota.RefreshForProjects(ctx); err != nil {
-			ia.SendInternalServerError(err)
-			return
-		}
-	}
-	defer func() {
-		ctx := orm.Context()
-		config.GetCfgManager(ctx).Set(ctx, common.ReadOnly, cur)
-		config.GetCfgManager(ctx).Set(ctx, common.QuotaPerProjectEnable, req.Enabled)
-		config.GetCfgManager(ctx).Save(ctx)
-	}()
-	return
-}
-
 // SyncQuota ...
 func (ia *InternalAPI) SyncQuota() {
 	if !config.QuotaPerProjectEnable(orm.Context()) {
diff --git a/src/core/api/internal_test.go b/src/core/api/internal_test.go
index 02903a98b..2ca101d21 100644
--- a/src/core/api/internal_test.go
+++ b/src/core/api/internal_test.go
@@ -19,42 +19,6 @@ import (
 	"testing"
 )
 
-// cannot verify the real scenario here
-func TestSwitchQuota(t *testing.T) {
-	cases := []*codeCheckingCase{
-		// 401
-		{
-			request: &testingRequest{
-				method: http.MethodPut,
-				url:    "/api/internal/switchquota",
-			},
-			code: http.StatusUnauthorized,
-		},
-		// 200
-		{
-			request: &testingRequest{
-				method:     http.MethodPut,
-				url:        "/api/internal/switchquota",
-				credential: sysAdmin,
-				bodyJSON: &QuotaSwitcher{
-					Enabled: true,
-				},
-			},
-			code: http.StatusOK,
-		},
-		// 403
-		{
-			request: &testingRequest{
-				url:        "/api/internal/switchquota",
-				method:     http.MethodPut,
-				credential: nonSysAdmin,
-			},
-			code: http.StatusForbidden,
-		},
-	}
-	runCodeCheckingCases(t, cases...)
-}
-
 // cannot verify the real scenario here
 func TestSyncQuota(t *testing.T) {
 	cases := []*codeCheckingCase{
diff --git a/src/server/route.go b/src/server/route.go
index 5e73943d4..7ee8c6817 100644
--- a/src/server/route.go
+++ b/src/server/route.go
@@ -46,7 +46,6 @@ func registerRoutes() {
 	beego.Router(common.AuthProxyRediretPath, &controllers.AuthProxyController{}, "get:HandleRedirect")
 
 	beego.Router("/api/internal/renameadmin", &api.InternalAPI{}, "post:RenameAdmin")
-	beego.Router("/api/internal/switchquota", &api.InternalAPI{}, "put:SwitchQuota")
 	beego.Router("/api/internal/syncquota", &api.InternalAPI{}, "post:SyncQuota")
 
 	beego.Router("/service/notifications/jobs/webhook/:id([0-9]+)", &jobs.Handler{}, "post:HandleNotificationJob")