diff --git a/app_admin/views.py b/app_admin/views.py
index 6431a87..bd46908 100644
--- a/app_admin/views.py
+++ b/app_admin/views.py
@@ -544,6 +544,7 @@ def admin_setting(request):
             static_code = request.POST.get('static_code',None) # 统计代码
             ad_code = request.POST.get('ad_code',None) # 广告位1
             ad_code_2 = request.POST.get('ad_code_2',None) # 广告位2
+            ad_code_3 = request.POST.get('ad_code_3', None)  # 广告位3
             beian_code = request.POST.get('beian_code',None) # 备案号
             enbale_email = request.POST.get("enable_email",None) # 启用邮箱
             enable_register_code = request.POST.get('enable_register_code',None) # 注册邀请码
@@ -572,6 +573,11 @@ def admin_setting(request):
                 name='ad_code_2',
                 defaults={'value': ad_code_2, 'types': 'basic'}
             )
+            SysSetting.objects.update_or_create(
+                name='ad_code_3',
+                defaults={'value': ad_code_3, 'types': 'basic'}
+            )
+
             # 更新备案号
             SysSetting.objects.update_or_create(
                 name='beian_code',
diff --git a/template/app_admin/admin_setting.html b/template/app_admin/admin_setting.html
index 9071988..b71c6df 100644
--- a/template/app_admin/admin_setting.html
+++ b/template/app_admin/admin_setting.html
@@ -81,6 +81,13 @@
                     </div>
                   </div>
 
+                  <div class="layui-form-item layui-form-text">
+                    <label class="layui-form-label">广告位3</label>
+                    <div class="layui-input-block">
+                      <textarea name="ad_code_3" placeholder="此广告位位于文档左侧目录栏下方，可以包含<script>标签" class="layui-textarea">{{ad_code_3}}</textarea>
+                    </div>
+                  </div>
+
                   <div class="layui-form-item">
                     <div class="layui-input-block">
                       <button class="layui-btn layui-btn-normal layui-btn-sm" lay-submit lay-filter="formDemo">保存</button>