diff --git a/internal/service/comment.go b/internal/service/comment.go
index 7688184..5dfb8d7 100644
--- a/internal/service/comment.go
+++ b/internal/service/comment.go
@@ -95,7 +95,15 @@ func (cs *CommentService) DeleteComment(ctx context.Context, commentID string) e
 		return errs.New(errs.ErrNotFound.Code, "comment not found", err)
 	}
 
-	if comment.UserID != currentUser.ID {
+	isTargetOwner := false
+	if comment.TargetType == constant.TargetTypePost {
+		post, err := repo.Post.GetPostByID(strconv.Itoa(int(comment.TargetID)))
+		if err == nil && post.UserID == currentUser.ID {
+			isTargetOwner = true
+		}
+	}
+
+	if comment.UserID != currentUser.ID || isTargetOwner {
 		return errs.ErrForbidden
 	}
 
diff --git a/pkg/constant/constant.go b/pkg/constant/constant.go
index da77616..b97bf14 100644
--- a/pkg/constant/constant.go
+++ b/pkg/constant/constant.go
@@ -8,7 +8,8 @@ const (
   ContextKeyUserID                       = "user_id"   // 上下文键：用户ID
   ModeDev                                = "dev"
   ModeProd                               = "prod"
-  RoleUser                               = "user"
+  RoleUser                               = "user"   // 普通用户 仅有阅读和评论权限
+  RoleEditor                             = "editor" // 能够发布和管理自己内容的用户
   RoleAdmin                              = "admin"
   EnvKeyBaseUrl                          = "BASE_URL"                             // 环境变量：基础URL
   EnvKeyCaptchaProvider                  = "CAPTCHA_PROVIDER"                     // captcha提供者