diff --git a/Merge/front/src/components/PostDetailJWLLL.jsx b/Merge/front/src/components/PostDetailJWLLL.jsx
index 2745d79..d598a72 100644
--- a/Merge/front/src/components/PostDetailJWLLL.jsx
+++ b/Merge/front/src/components/PostDetailJWLLL.jsx
@@ -23,6 +23,8 @@
   const [isFollowing, setIsFollowing] = useState(false)
   const [authorInfo, setAuthorInfo] = useState(null)
   const [previewImg, setPreviewImg] = useState(null)
+  const [commentUserMap, setCommentUserMap] = useState({}) // user_id: username
+  const [commentUserAvatarMap, setCommentUserAvatarMap] = useState({}) // user_id: avatar
   // 获取当前用户ID
   const getCurrentUserId = () => {
     const userInfo = getUserInfo()
@@ -80,11 +82,48 @@
     }
   }, [post])
 
+  // 拉取所有评论用户昵称
+  const fetchCommentUserNames = async (userIds) => {
+    const map = {}
+    await Promise.all(userIds.map(async uid => {
+      try {
+        const user = await postsAPI.getUser(uid)
+        map[uid] = user.username || user.nickname || `用户${uid}`
+      } catch {
+        map[uid] = `用户${uid}`
+      }
+    }))
+    setCommentUserMap(map)
+  }
+
+  // 拉取所有评论用户头像
+  const fetchCommentUserAvatars = async (userIds) => {
+    const map = {}
+    await Promise.all(userIds.map(async uid => {
+      try {
+        const user = await postsAPI.getUser(uid)
+        map[uid] = user.avatar && user.avatar.startsWith('http') ? user.avatar : (user.avatar ? `http://10.126.59.25:5715/static/${user.avatar}` : `https://i.pravatar.cc/40?img=${uid}`)
+      } catch {
+        map[uid] = `https://i.pravatar.cc/40?img=${uid}`
+      }
+    }))
+    setCommentUserAvatarMap(map)
+  }
+
   useEffect(() => {
     fetchPostDetail()
     fetchComments()
   }, [fetchPostDetail, fetchComments])
 
+  // 评论区用户昵称和头像拉取
+  useEffect(() => {
+    if (comments.length > 0) {
+      const userIds = [...new Set(comments.map(c => c.user_id).filter(Boolean))]
+      fetchCommentUserNames(userIds)
+      fetchCommentUserAvatars(userIds)
+    }
+  }, [comments])
+
   const handleBack = () => {
     navigate(-1)
   }
@@ -350,9 +389,9 @@
                     <div key={index} className="comment-item">
                       <div className="comment-author">
                         <div className="comment-avatar">
-                          {comment.user_name ? comment.user_name.charAt(0).toUpperCase() : 'U'}
+                          <img className="avatar" src={commentUserAvatarMap[comment.user_id] || `https://i.pravatar.cc/40?img=${comment.user_id}`} alt={commentUserMap[comment.user_id] || comment.user_name || '用户'} />
                         </div>
-                        <span className="comment-name">{comment.user_name || '匿名用户'}</span>
+                        <span className="comment-name">{commentUserMap[comment.user_id] || comment.user_name || '匿名用户'}</span>
                         <span className="comment-time">
                           {comment.create_time ? new Date(comment.create_time).toLocaleString('zh-CN') : ''}
                         </span>