diff --git a/src/pages/system/config/index.tsx b/src/pages/system/config/index.tsx
index 4145c82..b641126 100644
--- a/src/pages/system/config/index.tsx
+++ b/src/pages/system/config/index.tsx
@@ -170,10 +170,6 @@ const SystemConfigPage = () => {
           form.setFieldsValue({
             "ldap.base_dn": configData[i].key_value,
           });
-        } else if (configData[i].key_name === "ldap.user_dn_prefix") {
-          form.setFieldsValue({
-            "ldap.user_dn_prefix": configData[i].key_value,
-          });
         }
       }
     });
@@ -768,20 +764,6 @@ const SystemConfigPage = () => {
               <div className="helper-text">（从LDAP根节点搜索用户）</div>
             </Space>
           </Form.Item>
-          <Form.Item style={{ marginBottom: 30 }} label="附件用户DN">
-            <Space align="baseline" style={{ height: 32 }}>
-              <Form.Item name="ldap.user_dn_prefix">
-                <Input
-                  style={{ width: 274 }}
-                  allowClear
-                  placeholder="请填写基本DN"
-                />
-              </Form.Item>
-              <div className="helper-text">
-                （搜索用户时，基于基础DN的搜索范围限制）
-              </div>
-            </Space>
-          </Form.Item>
           <Form.Item
             style={{ marginBottom: 30 }}
             wrapperCol={{ offset: 3, span: 21 }}