diff --git a/frontend/src/components/GlobalConfig.jsx b/frontend/src/components/GlobalConfig.jsx
index 21267a3..d825362 100644
--- a/frontend/src/components/GlobalConfig.jsx
+++ b/frontend/src/components/GlobalConfig.jsx
@@ -195,6 +195,10 @@ const GlobalConfig = () => {
   const [showUserForm, setShowUserForm] = useState(false)
   const [newUser, setNewUser] = useState({ username: '', password: '', role: 'user', status: 'active' })
   const [editingUserId, setEditingUserId] = useState(null)
+  const [usersDetailed, setUsersDetailed] = useState([])
+  const [accountsAdmin, setAccountsAdmin] = useState([])
+  const [linkRole, setLinkRole] = useState('viewer')
+  const [linkAccountMap, setLinkAccountMap] = useState({})
   
   // 系统控制相关
   const [systemStatus, setSystemStatus] = useState(null)
@@ -1125,6 +1129,58 @@ const GlobalConfig = () => {
     },
   ]
 
+  const loadUsersAndAccounts = async () => {
+    if (!isAdmin) return
+    try {
+      setBusy(true)
+      const [users, accounts] = await Promise.all([
+        api.getUsersDetailed ? api.getUsersDetailed() : api.get('/admin/users/detailed').then(r => r.data),
+        api.getAccounts(),
+      ])
+      setUsersDetailed(Array.isArray(users) ? users : [])
+      setAccountsAdmin(Array.isArray(accounts) ? accounts : [])
+      const initMap = {}
+      ;(Array.isArray(users) ? users : []).forEach(u => {
+        initMap[u.id] = ''
+      })
+      setLinkAccountMap(initMap)
+    } catch (e) {
+      setMessage(e?.message || '加载失败')
+    } finally {
+      setBusy(false)
+    }
+  }
+  useEffect(() => {
+    if (isAdmin) loadUsersAndAccounts()
+  }, [isAdmin])
+
+  const handleGrant = async (userId) => {
+    const aid = parseInt(String(linkAccountMap[userId] || ''), 10)
+    if (!Number.isFinite(aid) || aid <= 0) return
+    try {
+      setBusy(true)
+      await api.grantUserAccount(userId, aid, linkRole)
+      setMessage('已关联账号')
+      await loadUsersAndAccounts()
+    } catch (e) {
+      setMessage(e?.message || '关联失败')
+    } finally {
+      setBusy(false)
+    }
+  }
+  const handleRevoke = async (userId, accountId) => {
+    try {
+      setBusy(true)
+      await api.revokeUserAccount(userId, accountId)
+      setMessage('已取消关联')
+      await loadUsersAndAccounts()
+    } catch (e) {
+      setMessage(e?.message || '取消失败')
+    } finally {
+      setBusy(false)
+    }
+  }
+
   return (
     <div className="global-config">
       <div className="global-config-header">
@@ -1250,6 +1306,96 @@ const GlobalConfig = () => {
         </section>
       )}
 
+      {isAdmin && (
+        <section className="global-section">
+          <div className="section-header">
+            <h3>用户管理与账号授权</h3>
+            <p style={{ fontSize: '14px', color: '#666', marginTop: '8px' }}>
+              管理用户与其关联的交易账号；用户登录后仅能看到已授权的账号，并可在顶部下拉切换
+            </p>
+          </div>
+          <div className="accounts-table">
+            {usersDetailed.length ? (
+              <table>
+                <thead>
+                  <tr>
+                    <th>用户</th>
+                    <th>角色</th>
+                    <th>状态</th>
+                    <th>已关联账号</th>
+                    <th>关联新账号</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  {usersDetailed.map(u => {
+                    const userAccs = Array.isArray(u.accounts) ? u.accounts : []
+                    const linkedIds = new Set(userAccs.map(a => a.id))
+                    const available = accountsAdmin.filter(a => !linkedIds.has(a.id))
+                    return (
+                      <tr key={u.id}>
+                        <td>{u.username}</td>
+                        <td><span className={`acct-badge ${u.role === 'admin' ? 'ok' : 'off'}`}>{u.role}</span></td>
+                        <td><span className={`acct-badge ${u.status === 'active' ? 'ok' : 'off'}`}>{u.status === 'active' ? '启用' : '禁用'}</span></td>
+                        <td>
+                          {userAccs.length === 0 ? (
+                            <span style={{ color: '#999' }}>暂无</span>
+                          ) : (
+                            <div style={{ display: 'flex', gap: '8px', flexWrap: 'wrap' }}>
+                              {userAccs.map(a => (
+                                <div key={a.id} style={{ display: 'flex', alignItems: 'center', gap: '6px', border: '1px solid #eee', padding: '4px 8px', borderRadius: '6px' }}>
+                                  <span>#{a.id} {a.name}</span>
+                                  <span className={`acct-badge ${a.status === 'active' ? 'ok' : 'off'}`}>{a.status === 'active' ? '启用' : '禁用'}</span>
+                                  <button
+                                    type="button"
+                                    className="system-btn danger"
+                                    onClick={() => handleRevoke(u.id, a.id)}
+                                    disabled={busy}
+                                  >
+                                    取消关联
+                                  </button>
+                                </div>
+                              ))}
+                            </div>
+                          )}
+                        </td>
+                        <td>
+                          <div style={{ display: 'flex', gap: '8px', alignItems: 'center' }}>
+                            <select
+                              value={linkAccountMap[u.id] || ''}
+                              onChange={(e) => setLinkAccountMap({ ...linkAccountMap, [u.id]: e.target.value })}
+                              style={{ minWidth: '200px' }}
+                            >
+                              <option value="">选择账号</option>
+                              {available.map(a => (
+                                <option key={a.id} value={a.id}>#{a.id} {a.name}</option>
+                              ))}
+                            </select>
+                            <select value={linkRole} onChange={(e) => setLinkRole(e.target.value)}>
+                              <option value="viewer">viewer</option>
+                              <option value="owner">owner</option>
+                            </select>
+                            <button
+                              type="button"
+                              className="system-btn primary"
+                              onClick={() => handleGrant(u.id)}
+                              disabled={busy || !linkAccountMap[u.id]}
+                            >
+                              关联账号
+                            </button>
+                          </div>
+                        </td>
+                      </tr>
+                    )
+                  })}
+                </tbody>
+              </table>
+            ) : (
+              <div className="accounts-empty">暂无用户数据</div>
+            )}
+          </div>
+        </section>
+      )}
+
 
 
       {/* 预设方案快速切换（仅管理员 + 全局策略账号） */}
diff --git a/frontend/src/services/api.js b/frontend/src/services/api.js
index 4ba29e2..9e9c787 100644
--- a/frontend/src/services/api.js
+++ b/frontend/src/services/api.js
@@ -784,6 +784,14 @@ export const api = {
     }
     return response.json();
   },
+  getUsersDetailed: async () => {
+    const response = await fetch(buildUrl('/api/admin/users/detailed'), { headers: withAuthHeaders() });
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({ detail: '获取用户详情失败' }));
+      throw new Error(error.detail || '获取用户详情失败');
+    }
+    return response.json();
+  },
   
   // 管理员：获取用户关联的账号列表
   getUserAccounts: async (userId) => {
@@ -794,6 +802,29 @@ export const api = {
     }
     return response.json();
   },
+  grantUserAccount: async (userId, accountId, role = 'viewer') => {
+    const response = await fetch(buildUrl(`/api/admin/users/${userId}/accounts/${accountId}`), {
+      method: 'PUT',
+      headers: withAuthHeaders({ 'Content-Type': 'application/json' }),
+      body: JSON.stringify({ role }),
+    });
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({ detail: '授权失败' }));
+      throw new Error(error.detail || '授权失败');
+    }
+    return response.json();
+  },
+  revokeUserAccount: async (userId, accountId) => {
+    const response = await fetch(buildUrl(`/api/admin/users/${userId}/accounts/${accountId}`), {
+      method: 'DELETE',
+      headers: withAuthHeaders(),
+    });
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({ detail: '取消授权失败' }));
+      throw new Error(error.detail || '取消授权失败');
+    }
+    return response.json();
+  },
   
   // 管理员：创建用户
   createUser: async (data) => {