diff --git a/open-isle-cli/package-lock.json b/open-isle-cli/package-lock.json
index e2e900c42..53f445be1 100644
--- a/open-isle-cli/package-lock.json
+++ b/open-isle-cli/package-lock.json
@@ -12,7 +12,7 @@
         "echarts": "^5.6.0",
         "ldrs": "^1.1.7",
         "markdown-it": "^14.1.0",
-        "vditor": "^3.8.7",
+        "vditor": "^3.11.1",
         "vue": "^3.2.13",
         "vue-easy-lightbox": "^1.19.0",
         "vue-echarts": "^7.0.3",
@@ -11330,9 +11330,9 @@
       }
     },
     "node_modules/vditor": {
-      "version": "3.8.7",
-      "resolved": "https://registry.npmjs.org/vditor/-/vditor-3.8.7.tgz",
-      "integrity": "sha512-7loYmcj1TCkJV86qwstxzAy33GweFKdJnpiSzGGPqUzDaOcUAiaiFAjIQjxwJ3/sx7pNZf1NWLhXKabXEN7xzQ==",
+      "version": "3.11.1",
+      "resolved": "https://registry.npmjs.org/vditor/-/vditor-3.11.1.tgz",
+      "integrity": "sha512-7rjNSXYVyZG0mVZpUG2tfxwnoNtkcRCnwdSju+Zvpjf/r72iQa6kLpeThFMIKPuQ5CRnQQv6gnR3eNU6UGbC2Q==",
       "license": "MIT",
       "dependencies": {
         "diff-match-patch": "^1.0.5"
diff --git a/open-isle-cli/package.json b/open-isle-cli/package.json
index 979bcfd71..ed41c14b4 100644
--- a/open-isle-cli/package.json
+++ b/open-isle-cli/package.json
@@ -9,15 +9,15 @@
   },
   "dependencies": {
     "core-js": "^3.8.3",
+    "echarts": "^5.6.0",
     "ldrs": "^1.1.7",
     "markdown-it": "^14.1.0",
-    "vditor": "^3.8.7",
+    "vditor": "^3.11.1",
     "vue": "^3.2.13",
-    "vue-router": "^4.5.1",
-    "vue-toastification": "^2.0.0-rc.5",
     "vue-easy-lightbox": "^1.19.0",
-    "echarts": "^5.6.0",
-    "vue-echarts": "^7.0.3"
+    "vue-echarts": "^7.0.3",
+    "vue-router": "^4.5.1",
+    "vue-toastification": "^2.0.0-rc.5"
   },
   "devDependencies": {
     "@babel/core": "^7.12.16",
diff --git a/open-isle-cli/src/utils/markdown.js b/open-isle-cli/src/utils/markdown.js
index 227c751ff..a3ed32ec7 100644
--- a/open-isle-cli/src/utils/markdown.js
+++ b/open-isle-cli/src/utils/markdown.js
@@ -3,6 +3,30 @@ import hljs from 'highlight.js'
 import 'highlight.js/styles/github.css'
 import { toast } from '../main'
 
+function mentionPlugin(md) {
+  const mentionReg = /^@\[([^\]]+)\]/
+  function mention(state, silent) {
+    const pos = state.pos
+    if (state.src.charCodeAt(pos) !== 0x40) return false
+    const match = mentionReg.exec(state.src.slice(pos))
+    if (!match) return false
+    if (!silent) {
+      const tokenOpen = state.push('link_open', 'a', 1)
+      tokenOpen.attrs = [
+        ['href', `/users/${match[1]}`],
+        ['target', '_blank'],
+        ['class', 'mention-link']
+      ]
+      const text = state.push('text', '', 0)
+      text.content = `@${match[1]}`
+      state.push('link_close', 'a', -1)
+    }
+    state.pos += match[0].length
+    return true
+  }
+  md.inline.ruler.before('emphasis', 'mention', mention)
+}
+
 const md = new MarkdownIt({
   html: false,
   linkify: true,
@@ -18,6 +42,8 @@ const md = new MarkdownIt({
   }
 })
 
+md.use(mentionPlugin)
+
 export function renderMarkdown(text) {
   return md.render(text || '')
 }
diff --git a/open-isle-cli/src/utils/user.js b/open-isle-cli/src/utils/user.js
new file mode 100644
index 000000000..a7469067e
--- /dev/null
+++ b/open-isle-cli/src/utils/user.js
@@ -0,0 +1,30 @@
+import { API_BASE_URL } from '../main'
+
+export async function fetchFollowings(username) {
+  if (!username) return []
+  try {
+    const res = await fetch(`${API_BASE_URL}/api/users/${username}/following`)
+    return res.ok ? await res.json() : []
+  } catch (e) {
+    return []
+  }
+}
+
+export async function fetchAdmins() {
+  try {
+    const res = await fetch(`${API_BASE_URL}/api/users/admins`)
+    return res.ok ? await res.json() : []
+  } catch (e) {
+    return []
+  }
+}
+
+export async function searchUsers(keyword) {
+  if (!keyword) return []
+  try {
+    const res = await fetch(`${API_BASE_URL}/api/search/users?keyword=${encodeURIComponent(keyword)}`)
+    return res.ok ? await res.json() : []
+  } catch (e) {
+    return []
+  }
+}
diff --git a/open-isle-cli/src/utils/vditor.js b/open-isle-cli/src/utils/vditor.js
index 2a46a0a52..5592d017b 100644
--- a/open-isle-cli/src/utils/vditor.js
+++ b/open-isle-cli/src/utils/vditor.js
@@ -1,7 +1,8 @@
 import Vditor from 'vditor'
 import 'vditor/dist/index.css'
 import { API_BASE_URL } from '../main'
-import { getToken } from './auth'
+import { getToken, authState } from './auth'
+import { searchUsers, fetchFollowings, fetchAdmins } from './user'
 
 export function getEditorTheme() {
   return document.documentElement.dataset.theme === 'dark' ? 'dark' : 'classic'
@@ -19,11 +20,42 @@ export function createVditor(editorId, options = {}) {
     after
   } = options
 
+  const fetchMentions = async (value) => {
+    if (!value) {
+      const [followings, admins] = await Promise.all([
+        fetchFollowings(authState.username),
+        fetchAdmins()
+      ])
+      const combined = [...followings, ...admins]
+      const seen = new Set()
+      return combined.filter(u => {
+        if (seen.has(u.id)) return false
+        seen.add(u.id)
+        return true
+      })
+    }
+    return searchUsers(value)
+  }
+
   return new Vditor(editorId, {
     placeholder,
     height: 'auto',
     theme: getEditorTheme(),
     preview: Object.assign({ theme: { current: getPreviewTheme() } }, preview),
+    hint: {
+      extend: [
+        {
+          key: '@',
+          hint: async (key) => {
+            const list = await fetchMentions(key)
+            return list.map(u => ({
+              value: `@[${u.username}]`,
+              html: `<img src="${u.avatar}" /> @${u.username}`
+            }))
+          },
+        },
+      ],
+    },
     cdn: 'https://openisle-1307107697.cos.ap-guangzhou.myqcloud.com/assert/vditor',
     toolbar: [
       'emoji',
diff --git a/open-isle-cli/src/views/MessagePageView.vue b/open-isle-cli/src/views/MessagePageView.vue
index c6cd86dc1..906d5f6e1 100644
--- a/open-isle-cli/src/views/MessagePageView.vue
+++ b/open-isle-cli/src/views/MessagePageView.vue
@@ -147,6 +147,29 @@
                   </router-link>
                 </NotificationContainer>
               </template>
+              <template v-else-if="item.type === 'MENTION' && item.comment">
+                <NotificationContainer :item="item" :markRead="markRead">
+                  <router-link class="notif-content-text" @click="markRead(item.id)" :to="`/users/${item.fromUser.id}`">
+                    {{ item.fromUser.username }}
+                  </router-link>
+                  在评论中提到了你：
+                  <router-link class="notif-content-text" @click="markRead(item.id)" :to="`/posts/${item.post.id}#comment-${item.comment.id}`">
+                    {{ sanitizeDescription(item.comment.content) }}
+                  </router-link>
+                </NotificationContainer>
+              </template>
+              <template v-else-if="item.type === 'MENTION'">
+                <NotificationContainer :item="item" :markRead="markRead">
+                  <router-link class="notif-content-text" @click="markRead(item.id)" :to="`/users/${item.fromUser.id}`">
+                    {{ item.fromUser.username }}
+                  </router-link>
+                  在帖子
+                  <router-link class="notif-content-text" @click="markRead(item.id)" :to="`/posts/${item.post.id}`">
+                    {{ sanitizeDescription(item.post.title) }}
+                  </router-link>
+                  中提到了你
+                </NotificationContainer>
+              </template>
               <template v-else-if="item.type === 'USER_FOLLOWED'">
                 <NotificationContainer :item="item" :markRead="markRead">
                   <router-link class="notif-content-text" @click="markRead(item.id)" :to="`/users/${item.fromUser.id}`">
@@ -327,7 +350,8 @@ export default {
       POST_SUBSCRIBED: 'fas fa-bookmark',
       POST_UNSUBSCRIBED: 'fas fa-bookmark',
       REGISTER_REQUEST: 'fas fa-user-clock',
-      ACTIVITY_REDEEM: 'fas fa-coffee'
+      ACTIVITY_REDEEM: 'fas fa-coffee',
+      MENTION: 'fas fa-at'
     }
 
     const reactionEmojiMap = {
@@ -416,6 +440,17 @@ export default {
                 router.push(`/users/${n.comment.author.id}`)
               }
             })
+          } else if (n.type === 'MENTION') {
+            notifications.value.push({
+              ...n,
+              icon: iconMap[n.type],
+              iconClick: () => {
+                if (n.fromUser) {
+                  markRead(n.id)
+                  router.push(`/users/${n.fromUser.id}`)
+                }
+              }
+            })
           } else if (n.type === 'USER_FOLLOWED' || n.type === 'USER_UNFOLLOWED') {
             notifications.value.push({
               ...n,
@@ -535,6 +570,8 @@ export default {
           return '有人取消关注你'
         case 'USER_ACTIVITY':
           return '关注的用户有新动态'
+        case 'MENTION':
+          return '有人提到了你'
         default:
           return t
       }
diff --git a/src/main/java/com/openisle/controller/SearchController.java b/src/main/java/com/openisle/controller/SearchController.java
index dbc2d16f9..067789d83 100644
--- a/src/main/java/com/openisle/controller/SearchController.java
+++ b/src/main/java/com/openisle/controller/SearchController.java
@@ -68,6 +68,7 @@ public class SearchController {
         UserDto dto = new UserDto();
         dto.setId(user.getId());
         dto.setUsername(user.getUsername());
+        dto.setAvatar(user.getAvatar());
         return dto;
     }
 
@@ -82,6 +83,7 @@ public class SearchController {
     private static class UserDto {
         private Long id;
         private String username;
+        private String avatar;
     }
 
     @Data
diff --git a/src/main/java/com/openisle/controller/UserController.java b/src/main/java/com/openisle/controller/UserController.java
index 4809e0e67..1aef3a650 100644
--- a/src/main/java/com/openisle/controller/UserController.java
+++ b/src/main/java/com/openisle/controller/UserController.java
@@ -196,6 +196,16 @@ public class UserController {
                 .collect(java.util.stream.Collectors.toList());
     }
 
+    /**
+     * List all administrator users.
+     */
+    @GetMapping("/admins")
+    public java.util.List<UserDto> admins() {
+        return userService.getAdmins().stream()
+                .map(this::toDto)
+                .collect(java.util.stream.Collectors.toList());
+    }
+
     @GetMapping("/{identifier}/all")
     public ResponseEntity<UserAggregateDto> userAggregate(@PathVariable("identifier") String identifier,
                                                           @RequestParam(value = "postsLimit", required = false) Integer postsLimit,
diff --git a/src/main/java/com/openisle/model/NotificationType.java b/src/main/java/com/openisle/model/NotificationType.java
index fb5672af3..8679530ff 100644
--- a/src/main/java/com/openisle/model/NotificationType.java
+++ b/src/main/java/com/openisle/model/NotificationType.java
@@ -31,5 +31,7 @@ public enum NotificationType {
     /** A user requested registration approval */
     REGISTER_REQUEST,
     /** A user redeemed an activity reward */
-    ACTIVITY_REDEEM
+    ACTIVITY_REDEEM,
+    /** You were mentioned in a post or comment */
+    MENTION
 }
diff --git a/src/main/java/com/openisle/service/CommentService.java b/src/main/java/com/openisle/service/CommentService.java
index 49d11c037..ce74c7d75 100644
--- a/src/main/java/com/openisle/service/CommentService.java
+++ b/src/main/java/com/openisle/service/CommentService.java
@@ -64,6 +64,7 @@ public class CommentService {
                 notificationService.createNotification(u, NotificationType.USER_ACTIVITY, post, comment, null, null, null, null);
             }
         }
+        notificationService.notifyMentions(content, author, post, comment);
         return comment;
     }
 
@@ -102,6 +103,7 @@ public class CommentService {
                 notificationService.createNotification(u, NotificationType.USER_ACTIVITY, parent.getPost(), comment, null, null, null, null);
             }
         }
+        notificationService.notifyMentions(content, author, parent.getPost(), comment);
         return comment;
     }
 
diff --git a/src/main/java/com/openisle/service/NotificationService.java b/src/main/java/com/openisle/service/NotificationService.java
index 2e5af02b4..561b59b28 100644
--- a/src/main/java/com/openisle/service/NotificationService.java
+++ b/src/main/java/com/openisle/service/NotificationService.java
@@ -11,6 +11,11 @@ import org.springframework.stereotype.Service;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import java.util.Map;
 
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import java.util.Set;
+import java.util.HashSet;
+
 import java.util.List;
 import java.util.concurrent.Executor;
 
@@ -28,6 +33,8 @@ public class NotificationService {
     @Value("${app.website-url}")
     private String websiteUrl;
 
+    private static final Pattern MENTION_PATTERN = Pattern.compile("@\\[([^\\]]+)\\]");
+
     private String buildPayload(String body, String url) {
 //        try {
 //            return new ObjectMapper().writeValueAsString(Map.of(
@@ -144,4 +151,22 @@ public class NotificationService {
                 .orElseThrow(() -> new com.openisle.exception.NotFoundException("User not found"));
         return notificationRepository.countByUserAndRead(user, false);
     }
+
+    public void notifyMentions(String content, User fromUser, Post post, Comment comment) {
+        if (content == null || fromUser == null) {
+            return;
+        }
+        Matcher matcher = MENTION_PATTERN.matcher(content);
+        Set<String> names = new HashSet<>();
+        while (matcher.find()) {
+            names.add(matcher.group(1));
+        }
+        for (String name : names) {
+            userRepository.findByUsername(name).ifPresent(target -> {
+                if (!target.getId().equals(fromUser.getId())) {
+                    createNotification(target, NotificationType.MENTION, post, comment, null, fromUser, null, null);
+                }
+            });
+        }
+    }
 }
diff --git a/src/main/java/com/openisle/service/PostService.java b/src/main/java/com/openisle/service/PostService.java
index e1a05b34e..2e124f3f4 100644
--- a/src/main/java/com/openisle/service/PostService.java
+++ b/src/main/java/com/openisle/service/PostService.java
@@ -139,6 +139,7 @@ public class PostService {
                         null);
             }
         }
+        notificationService.notifyMentions(content, author, post, null);
         return post;
     }
 
@@ -407,6 +408,7 @@ public class PostService {
         post.setTags(new java.util.HashSet<>(tags));
         Post updated = postRepository.save(post);
         imageUploader.adjustReferences(oldContent, content);
+        notificationService.notifyMentions(content, user, updated, null);
         return updated;
     }
 
diff --git a/src/main/java/com/openisle/service/UserService.java b/src/main/java/com/openisle/service/UserService.java
index 5872791c8..8e6a1d5ed 100644
--- a/src/main/java/com/openisle/service/UserService.java
+++ b/src/main/java/com/openisle/service/UserService.java
@@ -185,4 +185,11 @@ public class UserService {
         user.setPassword(passwordEncoder.encode(newPassword));
         return userRepository.save(user);
     }
+
+    /**
+     * Get all administrator accounts.
+     */
+    public java.util.List<User> getAdmins() {
+        return userRepository.findByRole(Role.ADMIN);
+    }
 }