diff --git a/src/db.ts b/src/db.ts
index 7e8f633..fdc4368 100644
--- a/src/db.ts
+++ b/src/db.ts
@@ -57,11 +57,22 @@ export function openDatabase(): Promise<void> {
   });
 }
 
+async function tableExists(name: string): Promise<boolean> {
+  const rows = await dbAll<{ cnt: number }>(
+    "SELECT COUNT(*) AS cnt FROM sqlite_master WHERE type='table' AND name=?",
+    [name],
+  );
+  return (rows[0]?.cnt ?? 0) > 0;
+}
+
 export async function initDatabase(): Promise<void> {
   fs.mkdirSync(MOCK_DIR, { recursive: true });
   fs.mkdirSync(DATA_DIR, { recursive: true });
   if (!fs.existsSync(DB_FILE) && fs.existsSync(LEGACY_DB_FILE)) {
     fs.copyFileSync(LEGACY_DB_FILE, DB_FILE);
+    console.log(
+      `[DB] 已从旧路径迁移数据库: ${LEGACY_DB_FILE} -> ${DB_FILE}`,
+    );
   }
   await openDatabase();
   await dbRun(`
@@ -132,6 +143,7 @@ export async function initDatabase(): Promise<void> {
       value TEXT NOT NULL
     )
   `);
+  const hadIpRules = await tableExists("ip_rules");
   await dbRun(`
     CREATE TABLE IF NOT EXISTS ip_rules (
       ip TEXT PRIMARY KEY,
@@ -145,6 +157,9 @@ export async function initDatabase(): Promise<void> {
       target_https INTEGER
     )
   `);
+  if (!hadIpRules) {
+    console.log("[DB] 数据库已自动升级: 新增 IP 管理（ip_rules）表");
+  }
   // 清理不该出现在 mock 列表中的系统文件
   await dbRun(
     "DELETE FROM mock_files WHERE file_path = ? OR file_path LIKE ?",