diff --git a/src/admin.py b/src/admin.py
index d2a325f..904f674 100644
--- a/src/admin.py
+++ b/src/admin.py
@@ -98,4 +98,49 @@ def removeuser():
                     error = "由于uid不存在，可能没有被删除，请再次检查删除结果"
                 else:
                     return redirect(url_for("admin.index"))
-    return render_template("admin/result.html", opname="删除用户出现意外", opresult=error, cur_time=datetime.now())
\ No newline at end of file
+    return render_template("admin/result.html", opname="删除用户出现意外", opresult=error, cur_time=datetime.now())
+
+
+@bp.route('/updateuser/<int:uid>/', methods=("POST",))
+@admin_login_required
+def updateuser(uid):
+    error = None
+    db = get_db()
+    cur = db.cursor()
+    cur.execute("select * from user where user_id=%s", (uid))
+    userinfo = cur.fetchone()
+    usermail = request.form['usermail']
+    username = request.form['username']
+    if userinfo is None:
+        error = "%s号用户不存在！" % (uid)
+    if username is None or len(username) == 0:
+        username = None
+    if usermail is None or len(usermail) == 0:
+        usermail = None
+    elif not validateEmail(usermail):
+        error = "邮箱不合法"
+
+    if error is None:
+        if usermail is not None:
+            try:
+                cur.execute("update user set user_mail=%s where user_id=%s", (usermail, uid))
+                db.commit()
+            except pymysql.IntegrityError as _e:
+                error = "邮箱重复！ %s" % (_e)
+                db.rollback()
+            except pymysql.Error as _e:
+                error = "未知错误： %s" % (_e) 
+                db.rollback()
+        if username is not None and error is None:
+            try:
+                cur.execute("update user set user_name=%s where user_id=%s", (username, uid))
+                db.commit()
+            except pymysql.IntegrityError as _e:
+                error = "用户名重复！ %s" % (_e)
+                db.rollback()
+            except pymysql.Error as _e:
+                error = "未知错误： %s" % (_e) 
+                db.rollback()
+        if error is None:
+            return redirect(url_for("admin.index"))
+    return render_template("admin/result.html", opname="更新用户信息失败", opresult=error, cur_time=datetime.now())
diff --git a/src/templates/admin/index.html b/src/templates/admin/index.html
index 03e4665..78959e2 100644
--- a/src/templates/admin/index.html
+++ b/src/templates/admin/index.html
@@ -2,9 +2,42 @@
 
 {% block header %}
   <h2 class="text-center">{% block title %}管理主页{% endblock %}</h2>
+  <script>
+    function control_modal(op, modal_id, uid='1'){
+      modal_elm = document.getElementById(modal_id);
+      if (op == 'active') {
+        modal_elm.classList.add('active');
+        model_form = document.getElementById("modal-form");
+        model_form.attributes['action'].nodeValue = '/admin/updateuser/' + uid + '/';
+      } else {
+        modal_elm.classList.remove('active');
+      }
+    }
+    </script>
 {% endblock %}
 
 {% block content %}
+<div class="modal" id="modal-updateuser">
+  <a onclick="control_modal('diactiate', 'modal-updateuser')" class="modal-overlay" aria-label="Close"></a>
+  <div class="modal-container">
+    <div class="modal-header">
+      <a onclick="control_modal('diactiate', 'modal-updateuser')" class="btn btn-clear float-right" aria-label="Close"></a>
+      <div class="modal-title h5">修改用户信息</div>
+    </div>
+    <div class="modal-body">
+      <form id="modal-form" method="post" class="form-group" action="/admin/updateuser/1/">
+        <label class="form-label" for="username">用户名</label>
+        <input class="form-input" name="username" id="username"> 
+        <label class="form-label" for="usermail">邮箱</label>
+        <input class="form-input" name="usermail" id="usermail">         
+      </form>
+    </div>
+    <div class="modal-footer">
+      <input form="modal-form" class="btn btn-primary" type="submit" value="提交">
+      <a href="" class="btn">取消</a>
+    </div>
+  </div>
+</div>
   <div>
     <span>
       <h3 class="px-2">用户列表</h3>
@@ -24,7 +57,10 @@
           <td>{{ user['user_name'] }}</td>
           <td>{{ user['user_mail'] }}</td>
           <td>{{ user['user_limit'] / 1024 / 1024 }}GB</td>
-          <td><a href="/admin/removeuser?uid={{user['user_id']}}" >删除</a></td>
+          <td>
+            <a class="btn" href="/admin/removeuser?uid={{user['user_id']}}" >删除</a>
+            <a class="btn" onclick="control_modal('active', 'modal-updateuser', '{{user['user_id']}}')">修改</a>
+          </td>
         </tr>
         {% endfor %}
       </tbody>