diff --git a/database/migrations/20260816204000_system_mcp_menu_seed.php b/database/migrations/20260816204000_system_mcp_menu_seed.php
new file mode 100644
index 0000000..b5624e0
--- /dev/null
+++ b/database/migrations/20260816204000_system_mcp_menu_seed.php
@@ -0,0 +1,88 @@
+<?php
+
+use think\migration\Migrator;
+
+/**
+ * MCP 管理菜单数据 - 「系统管理」分组追加两条
+ *
+ * 分发背景：基础菜单结构由框架内核数据 extend/base/admin/service/adminInitData/SystemMenu.php
+ * （显式 id 227~311，seed:run 时经 AdminInitService 写入）初始化；空库安装顺序为
+ * migrate:run 先于 seed:run，故本迁移使用显式 id 312/313 与内核 id 序列衔接，
+ * 保证 sort=0 组内排在「快捷入口」(id 252) 之后（菜单排序规则：sort DESC, id ASC），
+ * 即分组尾部；pid=228 为内核数据中「系统管理」分组的固定 id。
+ *
+ * 节点说明：auth_node 填控制器 index 节点（同 xhprof 菜单行 305~307 惯例），
+ * 菜单可见性由 MenuServiceBase::buildMenuChild 经 checkNode(auth_node) 精确校验；
+ * 动作级权限（add/edit/delete/authorize/saveAuthorize/read 等）由 auth 注解节点体系承担，
+ * 不在菜单 auth_node（char 100，单节点）表达。
+ *
+ * 幂等：system_menu.href 无唯一键，up 用存在性检查（href + delete_time=0）防重，
+ * 经 CLI（admin:menu:create）先行建行的环境重放为 no-op。
+ * down 与 up 对称：按 href 物理删除本迁移引入的两行。
+ */
+class SystemMcpMenuSeed extends Migrator
+{
+    public function up()
+    {
+        $prefix = $this->getAdapter()->getOption('table_prefix');
+        $now = time();
+        $rows = [
+            [
+                'id' => 312,
+                'title' => 'MCP密钥管理',
+                'icon' => 'fa fa-key',
+                'href' => 'system.mcp_key/index',
+                'auth_node' => 'system.mcp_key/index',
+            ],
+            [
+                'id' => 313,
+                'title' => 'MCP调用日志',
+                'icon' => 'fa fa-file-text-o',
+                'href' => 'system.mcp_log/index',
+                'auth_node' => 'system.mcp_log/index',
+            ],
+        ];
+
+        foreach ($rows as $row) {
+            $href = $this->quoteLiteral($row['href']);
+            $exists = $this->fetchRow(
+                "SELECT `id` FROM `{$prefix}system_menu` WHERE `href` = {$href} AND `delete_time` = 0"
+            );
+            if (!empty($exists)) {
+                continue;
+            }
+
+            $sql = sprintf(
+                "INSERT INTO `%ssystem_menu` (`id`, `pid`, `title`, `icon`, `href`, `auth_node`, `params`, `target`, `sort`, `status`, `remark`, `create_time`, `update_time`, `delete_time`)"
+                . " VALUES (%d, 228, %s, %s, %s, %s, '', '_self', 0, 1, '', %d, %d, 0)",
+                $prefix,
+                $row['id'],
+                $this->quoteLiteral($row['title']),
+                $this->quoteLiteral($row['icon']),
+                $this->quoteLiteral($row['href']),
+                $this->quoteLiteral($row['auth_node']),
+                $now,
+                $now
+            );
+            $this->execute($sql);
+        }
+    }
+
+    public function down()
+    {
+        $prefix = $this->getAdapter()->getOption('table_prefix');
+        $hrefs = implode(', ', [
+            $this->quoteLiteral('system.mcp_key/index'),
+            $this->quoteLiteral('system.mcp_log/index'),
+        ]);
+        $this->execute("DELETE FROM `{$prefix}system_menu` WHERE `href` IN ({$hrefs})");
+    }
+
+    /**
+     * MySQL 字面量包装：单引号包裹 + 反斜杠转义（照 XhprofWatchSeed 惯例）.
+     */
+    private function quoteLiteral(string $value): string
+    {
+        return "'" . addcslashes($value, "\\") . "'";
+    }
+}