diff --git a/client/package.json b/client/package.json
index 93eb292..413500f 100644
--- a/client/package.json
+++ b/client/package.json
@@ -1,7 +1,7 @@
 {
   "name": "device-management-client",
   "private": true,
-  "version": "2.1.0",
+  "version": "2.2.0",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/client/src/App.jsx b/client/src/App.jsx
index 8d64e20..eff22ff 100644
--- a/client/src/App.jsx
+++ b/client/src/App.jsx
@@ -127,7 +127,7 @@ function App() {
     { key: 'personnel', icon: <TeamOutlined />, label: '人员管理' },
     ...(user?.role === 'admin' ? [{ key: 'accounts', icon: <UserSwitchOutlined />, label: '账户管理' }] : []),
     { key: 'notifications', icon: <BellOutlined />, label: '通知管理' },
-    { key: 'download', icon: <InfoCircleOutlined />, label: '软件下载' },
+    { key: 'download', icon: <InfoCircleOutlined />, label: '软件下载' }
   ]
 
   // 移动端底部导航（5个核心入口）
diff --git a/client/src/pages/About.jsx b/client/src/pages/About.jsx
index 849cc5b..5803afd 100644
--- a/client/src/pages/About.jsx
+++ b/client/src/pages/About.jsx
@@ -5,7 +5,7 @@ function About() {
   return (
     <div className="about-page">
       <Card>
-        <h1>影视星河 · 设备管理系统 v2.1</h1>
+        <h1>影视星河 · 设备管理系统 v2.2</h1>
         <Divider />
 
         <h2>软件概述</h2>
@@ -62,12 +62,17 @@ function About() {
 
         <h2>版本信息</h2>
         <ul>
-          <li>当前版本：v2.1</li>
+          <li>当前版本：v2.2</li>
           <li>发布日期：2026年8月</li>
           <li>许可证：MIT License</li>
         </ul>
 
         <h2>更新日志</h2>
+        <h3>v2.2（2026年8月）</h3>
+        <ol>
+          <li>添加群聊删除人员的功能</li>
+          <li>修复创建群聊显示框闪退的bug</li>
+        </ol>
         <h3>v2.1（2026年8月）</h3>
         <ol>
           <li>添加用户修改密码功能</li>
diff --git a/client/src/pages/Dashboard.jsx b/client/src/pages/Dashboard.jsx
index da83da7..39da754 100644
--- a/client/src/pages/Dashboard.jsx
+++ b/client/src/pages/Dashboard.jsx
@@ -120,7 +120,7 @@ function Dashboard({ onNavigate }) {
         <h3>系统信息</h3>
         <Row gutter={16} style={{ marginTop: 12 }}>
           <Col span={8}>
-            <p><strong>系统版本：</strong>v2.1</p>
+            <p><strong>系统版本：</strong>v2.2</p>
             <p><strong>系统名称：</strong>设备管理系统</p>
           </Col>
           <Col span={8}>
diff --git a/client/src/pages/Messages.jsx b/client/src/pages/Messages.jsx
index 4c31073..ad51a1a 100644
--- a/client/src/pages/Messages.jsx
+++ b/client/src/pages/Messages.jsx
@@ -1,6 +1,6 @@
 import React, { useState, useEffect, useRef } from 'react'
 import { Card, Button, Input, List, Badge, Modal, Form, Select, Tabs, Avatar, Empty, message, Popconfirm, Space, Tag, Tooltip } from 'antd'
-import { PlusOutlined, SendOutlined, TeamOutlined, UserOutlined, ArrowLeftOutlined, DeleteOutlined } from '@ant-design/icons'
+import { PlusOutlined, SendOutlined, TeamOutlined, UserOutlined, ArrowLeftOutlined, DeleteOutlined, SettingOutlined, UserDeleteOutlined } from '@ant-design/icons'
 import axios from 'axios'
 
 const { TextArea } = Input
@@ -25,6 +25,7 @@ function Messages({ user }) {
   const [inputValue, setInputValue] = useState('')
   const [sending, setSending] = useState(false)
   const [createVisible, setCreateVisible] = useState(false)
+  const [membersVisible, setMembersVisible] = useState(false)
   const [createForm] = Form.useForm()
   const [creating, setCreating] = useState(false)
   const bottomRef = useRef(null)
@@ -148,6 +149,31 @@ function Messages({ user }) {
 
   const canDelete = (conv) => conv.type === 'direct' || conv.creator_id === user?.id
 
+  // 群主移除群成员
+  const handleRemoveMember = async (memberId) => {
+    try {
+      const res = await axios.delete(`/api/chat/conversations/${activeConv.id}/members/${memberId}`)
+      if (res.data.success) {
+        message.success(res.data.message)
+        setMembersVisible(false)
+        // 刷新会话列表与当前会话
+        const list = await axios.get('/api/chat/conversations')
+        if (list.data.success) {
+          setConversations(list.data.data)
+          const conv = list.data.data.find(c => c.id === activeConv.id)
+          if (conv) {
+            setActiveConv(conv)
+            activeConvRef.current = conv
+          } else {
+            closeConversation()
+          }
+        }
+      }
+    } catch (err) {
+      message.error(err.response?.data?.message || '操作失败')
+    }
+  }
+
   const otherOptions = allUsers.filter(u => u.id !== user?.id).map(u => ({
     value: u.id,
     label: (
@@ -234,6 +260,11 @@ function Messages({ user }) {
             <Tag style={{ marginLeft: 8 }}>{activeConv.member_count}人</Tag>
           </Tooltip>
         )}
+        {activeConv.type === 'group' && activeConv.creator_id === user?.id && (
+          <Button size="small" type="text" icon={<SettingOutlined />} onClick={() => setMembersVisible(true)} style={{ marginLeft: 'auto' }}>
+            成员管理
+          </Button>
+        )}
       </div>
       <div className="chat-messages">
         {messages.length === 0 && <Empty description="还没有消息，发送第一条吧" image={Empty.PRESENTED_IMAGE_SIMPLE} style={{ marginTop: 40 }} />}
@@ -267,6 +298,103 @@ function Messages({ user }) {
     </div>
   )
 
+  // ============ 发起对话 / 建群弹窗 ============
+  // 注意：这里必须用普通 JSX 变量而非内部函数组件，
+  // 否则轮询重新渲染时组件类型变化会导致弹窗被卸载重建（闪退）
+  const createModal = (
+    <Modal
+      title="发起对话"
+      open={createVisible}
+      onCancel={() => setCreateVisible(false)}
+      footer={null}
+      width={480}
+    >
+      <Form form={createForm} layout="vertical" onFinish={handleCreate} initialValues={{ tab: 'direct' }}>
+        <Form.Item name="tab" noStyle>
+          <Tabs
+            centered
+            items={[
+              {
+                key: 'direct',
+                label: '单聊',
+                children: (
+                  <Form.Item name="userId" label="选择对话对象" rules={[{ required: true, message: '请选择对话对象' }]}>
+                    <Select placeholder="选择用户（绿点为在线）" options={otherOptions} showSearch optionFilterProp="label" />
+                  </Form.Item>
+                )
+              },
+              {
+                key: 'group',
+                label: '创建群聊',
+                children: (
+                  <>
+                    <Form.Item name="name" label="群名称" rules={[{ required: true, message: '请输入群名称' }]}>
+                      <Input placeholder="例如：拍摄组工作群" />
+                    </Form.Item>
+                    <Form.Item name="memberIds" label="群成员（除自己外至少选1人）" rules={[{ required: true, message: '请选择群成员' }]}>
+                      <Select mode="multiple" placeholder="选择群成员" options={otherOptions} showSearch optionFilterProp="label" />
+                    </Form.Item>
+                  </>
+                )
+              }
+            ]}
+          />
+        </Form.Item>
+        <div style={{ textAlign: 'right' }}>
+          <Space>
+            <Button onClick={() => setCreateVisible(false)}>取消</Button>
+            <Button type="primary" htmlType="submit" loading={creating}>确定</Button>
+          </Space>
+        </div>
+      </Form>
+    </Modal>
+  )
+
+  // ============ 群成员管理弹窗（仅群主可见） ============
+  const membersModal = (
+    <Modal
+      title={`群成员管理（${activeConv?.member_count || 0}人）`}
+      open={membersVisible}
+      onCancel={() => setMembersVisible(false)}
+      footer={null}
+      width={420}
+    >
+      <List
+        dataSource={activeConv?.members || []}
+        renderItem={(m) => (
+          <List.Item
+            actions={
+              m.id !== activeConv?.creator_id
+                ? [
+                    <Popconfirm
+                      key="del"
+                      title={`确定将 ${m.display_name || m.username} 移出群聊吗？`}
+                      onConfirm={() => handleRemoveMember(m.id)}
+                      okText="确定"
+                      cancelText="取消"
+                    >
+                      <Button type="text" size="small" danger icon={<UserDeleteOutlined />} />
+                    </Popconfirm>
+                  ]
+                : []
+            }
+          >
+            <List.Item.Meta
+              avatar={<Avatar icon={<UserOutlined />} />}
+              title={
+                <span>
+                  {m.display_name || m.username}
+                  {m.id === activeConv?.creator_id && <Tag color="gold" style={{ marginLeft: 8 }}>群主</Tag>}
+                  {m.id === user?.id && <Tag style={{ marginLeft: 8 }}>我</Tag>}
+                </span>
+              }
+            />
+          </List.Item>
+        )}
+      />
+    </Modal>
+  )
+
   // ============ 布局 ============
   if (isMobile) {
     return (
@@ -275,7 +403,8 @@ function Messages({ user }) {
           {activeConv ? chatWindow : conversationList}
         </Card>
 
-        <CreateConvModal />
+        {createModal}
+        {membersModal}
       </div>
     )
   }
@@ -289,61 +418,10 @@ function Messages({ user }) {
         </div>
       </Card>
 
-      <CreateConvModal />
+      {createModal}
+      {membersModal}
     </div>
   )
-
-  // ============ 发起对话 / 建群弹窗 ============
-  function CreateConvModal() {
-    return (
-      <Modal
-        title="发起对话"
-        open={createVisible}
-        onCancel={() => setCreateVisible(false)}
-        footer={null}
-        width={480}
-      >
-        <Form form={createForm} layout="vertical" onFinish={handleCreate} initialValues={{ tab: 'direct' }}>
-          <Form.Item name="tab" noStyle>
-            <Tabs
-              centered
-              items={[
-                {
-                  key: 'direct',
-                  label: '单聊',
-                  children: (
-                    <Form.Item name="userId" label="选择对话对象" rules={[{ required: true, message: '请选择对话对象' }]}>
-                      <Select placeholder="选择用户（绿点为在线）" options={otherOptions} showSearch optionFilterProp="label" />
-                    </Form.Item>
-                  )
-                },
-                {
-                  key: 'group',
-                  label: '创建群聊',
-                  children: (
-                    <>
-                      <Form.Item name="name" label="群名称" rules={[{ required: true, message: '请输入群名称' }]}>
-                        <Input placeholder="例如：拍摄组工作群" />
-                      </Form.Item>
-                      <Form.Item name="memberIds" label="群成员（除自己外至少选1人）" rules={[{ required: true, message: '请选择群成员' }]}>
-                        <Select mode="multiple" placeholder="选择群成员" options={otherOptions} showSearch optionFilterProp="label" />
-                      </Form.Item>
-                    </>
-                  )
-                }
-              ]}
-            />
-          </Form.Item>
-          <div style={{ textAlign: 'right' }}>
-            <Space>
-              <Button onClick={() => setCreateVisible(false)}>取消</Button>
-              <Button type="primary" htmlType="submit" loading={creating}>确定</Button>
-            </Space>
-          </div>
-        </Form>
-      </Modal>
-    )
-  }
 }
 
 export default Messages
diff --git a/package.json b/package.json
index de67089..9b9e5b5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "device-management-system",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "影视星河设备管理系统 - Device Management System",
   "main": "electron/main.js",
   "scripts": {
diff --git a/server.js b/server.js
index fe2b015..d6faacd 100644
--- a/server.js
+++ b/server.js
@@ -867,6 +867,29 @@ app.delete('/api/chat/conversations/:id', (req, res) => {
   res.json({ success: true, message: conv.type === 'group' ? '群组已解散' : '会话已删除' });
 });
 
+// 移除群成员（群主可移除任意成员，群主本人不可被移除）
+app.delete('/api/chat/conversations/:id/members/:userId', (req, res) => {
+  const conv = db.prepare('SELECT * FROM conversations WHERE id = ?').get(req.params.id);
+  if (!conv || conv.type !== 'group') {
+    return res.status(404).json({ success: false, message: '群聊不存在' });
+  }
+  if (!isConversationMember(conv.id, req.user.id)) {
+    return res.status(403).json({ success: false, message: '您不是该群聊的成员' });
+  }
+  const targetId = req.params.userId;
+  if (targetId === conv.creator_id) {
+    return res.status(400).json({ success: false, message: '群主不能被移除' });
+  }
+  if (!isConversationMember(conv.id, targetId)) {
+    return res.status(404).json({ success: false, message: '该用户不在群聊中' });
+  }
+  if (req.user.id !== conv.creator_id) {
+    return res.status(403).json({ success: false, message: '只有群主可以移除群成员' });
+  }
+  db.prepare('DELETE FROM conversation_members WHERE conversation_id = ? AND user_id = ?').run(conv.id, targetId);
+  res.json({ success: true, message: '已将该成员移出群聊' });
+});
+
 // ==================== 认证 API ====================
 
 // 登录