diff --git a/core/config_sync.py b/core/config_sync.py
index d2e4f0c..7bad3e8 100644
--- a/core/config_sync.py
+++ b/core/config_sync.py
@@ -528,10 +528,14 @@ class ConfigSyncManager:
         try:
             # 同步摄像头配置
             cameras = config_data.get("cameras", [])
+            incoming_camera_ids = set()
             for cam in cameras:
+                cam_id = cam.get("camera_id", "")
+                if cam_id:
+                    incoming_camera_ids.add(cam_id)
                 try:
                     self._db_manager.save_camera_config(
-                        camera_id=cam.get("camera_id", ""),
+                        camera_id=cam_id,
                         rtsp_url=cam.get("rtsp_url", ""),
                         camera_name=cam.get("camera_name", ""),
                         enabled=cam.get("enabled", True),
@@ -543,13 +547,16 @@ class ConfigSyncManager:
 
             # 同步 ROI 配置
             rois = config_data.get("rois", [])
+            incoming_roi_ids = set()
             for roi in rois:
                 if not isinstance(roi, dict):
-                    logger.error(f"?? ROI ????: invalid roi item type={type(roi)}")
+                    logger.error(f"无效 ROI 数据: invalid roi item type={type(roi)}")
                     continue
+                roi_id = roi.get("roi_id", "")
+                if roi_id:
+                    incoming_roi_ids.add(roi_id)
                 try:
                     coordinates = roi.get("coordinates", [])
-                    # ?? rectangle dict ? polygon list-of-dict ??
                     if isinstance(coordinates, dict):
                         coordinates = {
                             "x": coordinates.get("x", 0),
@@ -561,7 +568,7 @@ class ConfigSyncManager:
                         coordinates = [[p.get("x", 0), p.get("y", 0)] for p in coordinates]
 
                     self._db_manager.save_roi_config(
-                        roi_id=roi.get("roi_id", ""),
+                        roi_id=roi_id,
                         camera_id=roi.get("camera_id", ""),
                         roi_type=roi.get("roi_type", "polygon"),
                         coordinates=coordinates,
@@ -574,10 +581,14 @@ class ConfigSyncManager:
 
             # 同步算法绑定
             binds = config_data.get("binds", [])
+            incoming_bind_ids = set()
             for bind in binds:
+                bind_id = bind.get("bind_id", "")
+                if bind_id:
+                    incoming_bind_ids.add(bind_id)
                 try:
                     self._db_manager.save_roi_algo_bind(
-                        bind_id=bind.get("bind_id", ""),
+                        bind_id=bind_id,
                         roi_id=bind.get("roi_id", ""),
                         algo_code=bind.get("algo_code", ""),
                         params=bind.get("params", {}),
@@ -590,9 +601,51 @@ class ConfigSyncManager:
 
             logger.info(f"配置同步到 SQLite 完成: {count} 条记录")
 
+            # 清理 SQLite 中不在本次推送列表中的旧数据
+            self._cleanup_stale_records(incoming_camera_ids, incoming_roi_ids, incoming_bind_ids)
+
         except Exception as e:
             logger.error(f"配置同步到 SQLite 失败: {e}")
 
+    def _cleanup_stale_records(self, incoming_camera_ids: set, incoming_roi_ids: set, incoming_bind_ids: set):
+        """清理 SQLite 中不在本次推送列表中的旧记录"""
+        if not self._db_manager:
+            return
+
+        # 仅在推送列表非空时执行清理，防止空配置误删所有数据
+        if not incoming_camera_ids and not incoming_roi_ids:
+            logger.debug("推送列表为空，跳过旧数据清理")
+            return
+
+        removed = 0
+        try:
+            # 清理旧摄像头
+            if incoming_camera_ids:
+                existing_cameras = self._db_manager.get_all_camera_configs()
+                for cam in existing_cameras:
+                    old_id = cam.get("camera_id", "")
+                    if old_id and old_id not in incoming_camera_ids:
+                        self._db_manager.delete_camera_config(old_id)
+                        removed += 1
+                        logger.info(f"清理旧摄像头: {old_id}")
+
+            # 清理旧 ROI 及其关联的算法绑定
+            if incoming_roi_ids:
+                existing_rois = self._db_manager.get_all_roi_configs()
+                for roi in existing_rois:
+                    old_roi_id = roi.get("roi_id", "")
+                    if old_roi_id and old_roi_id not in incoming_roi_ids:
+                        bind_count = self._db_manager.delete_bindings_by_roi(old_roi_id)
+                        self._db_manager.delete_roi_config(old_roi_id)
+                        removed += 1 + bind_count
+                        logger.info(f"清理旧 ROI: {old_roi_id} (含 {bind_count} 条算法绑定)")
+
+            if removed > 0:
+                logger.info(f"旧数据清理完成: 共删除 {removed} 条过期记录")
+
+        except Exception as e:
+            logger.error(f"清理旧数据失败: {e}")
+
     # ==================== 回调管理 ====================
 
     def register_callback(self, topic: str, callback: Callable):