diff --git a/internal/controller/user_controller.go b/internal/controller/user_controller.go
index 4ad697cf..47a39416 100644
--- a/internal/controller/user_controller.go
+++ b/internal/controller/user_controller.go
@@ -421,6 +421,7 @@ func (uc *UserController) UserUpdateInfo(ctx *gin.Context) {
 		return
 	}
 	req.UserID = middleware.GetLoginUserIDFromContext(ctx)
+	req.IsAdmin = middleware.GetUserIsAdminModerator(ctx)
 	errFields, err := uc.userService.UpdateInfo(ctx, req)
 	for _, field := range errFields {
 		field.ErrorMsg = translator.Tr(handler.GetLang(ctx), field.ErrorMsg)
diff --git a/internal/schema/user_schema.go b/internal/schema/user_schema.go
index 82a8ab2f..93b6291a 100644
--- a/internal/schema/user_schema.go
+++ b/internal/schema/user_schema.go
@@ -208,22 +208,15 @@ func (u *UserModifyPasswordReq) Check() (errFields []*validator.FormErrorField,
 }
 
 type UpdateInfoRequest struct {
-	// display_name
-	DisplayName string `validate:"omitempty,gt=0,lte=30" json:"display_name"`
-	// username
-	Username string `validate:"omitempty,gt=3,lte=30" json:"username"`
-	// avatar
-	Avatar AvatarInfo `json:"avatar"`
-	// bio
-	Bio string `validate:"omitempty,gt=0,lte=4096" json:"bio"`
-	// bio
-	BioHTML string `json:"-"`
-	// website
-	Website string `validate:"omitempty,gt=0,lte=500" json:"website"`
-	// location
-	Location string `validate:"omitempty,gt=0,lte=100" json:"location"`
-	// user id
-	UserID string `json:"-"`
+	DisplayName string     `validate:"omitempty,gt=0,lte=30" json:"display_name"`
+	Username    string     `validate:"omitempty,gt=3,lte=30" json:"username"`
+	Avatar      AvatarInfo `json:"avatar"`
+	Bio         string     `validate:"omitempty,gt=0,lte=4096" json:"bio"`
+	BioHTML     string     `json:"-"`
+	Website     string     `validate:"omitempty,gt=0,lte=500" json:"website"`
+	Location    string     `validate:"omitempty,gt=0,lte=100" json:"location"`
+	UserID      string     `json:"-"`
+	IsAdmin     bool       `json:"-"`
 }
 
 type AvatarInfo struct {
diff --git a/internal/service/user_service.go b/internal/service/user_service.go
index c2553141..560ff7c2 100644
--- a/internal/service/user_service.go
+++ b/internal/service/user_service.go
@@ -274,18 +274,22 @@ func (us *UserService) UpdateInfo(ctx context.Context, req *schema.UpdateInfoReq
 
 	if siteUsers.AllowUpdateUsername && len(req.Username) > 0 {
 		if checker.IsInvalidUsername(req.Username) {
-			errFields = append(errFields, &validator.FormErrorField{
+			return append(errFields, &validator.FormErrorField{
 				ErrorField: "username",
 				ErrorMsg:   reason.UsernameInvalid,
-			})
-			return errFields, errors.BadRequest(reason.UsernameInvalid)
+			}), errors.BadRequest(reason.UsernameInvalid)
 		}
-		if checker.IsReservedUsername(req.Username) {
-			errFields = append(errFields, &validator.FormErrorField{
+		// admin can use reserved username
+		if !req.IsAdmin && checker.IsReservedUsername(req.Username) {
+			return append(errFields, &validator.FormErrorField{
 				ErrorField: "username",
 				ErrorMsg:   reason.UsernameInvalid,
-			})
-			return errFields, errors.BadRequest(reason.UsernameInvalid)
+			}), errors.BadRequest(reason.UsernameInvalid)
+		} else if req.IsAdmin && checker.IsUsersIgnorePath(req.Username) {
+			return append(errFields, &validator.FormErrorField{
+				ErrorField: "username",
+				ErrorMsg:   reason.UsernameInvalid,
+			}), errors.BadRequest(reason.UsernameInvalid)
 		}
 
 		userInfo, exist, err := us.userRepo.GetByUsername(ctx, req.Username)
@@ -293,11 +297,10 @@ func (us *UserService) UpdateInfo(ctx context.Context, req *schema.UpdateInfoReq
 			return nil, err
 		}
 		if exist && userInfo.ID != req.UserID {
-			errFields = append(errFields, &validator.FormErrorField{
+			return append(errFields, &validator.FormErrorField{
 				ErrorField: "username",
 				ErrorMsg:   reason.UsernameDuplicate,
-			})
-			return errFields, errors.BadRequest(reason.UsernameDuplicate)
+			}), errors.BadRequest(reason.UsernameDuplicate)
 		}
 	}