diff --git a/inventory-backend/app/utils/executor.py b/inventory-backend/app/utils/executor.py
new file mode 100644
index 0000000..1145866
--- /dev/null
+++ b/inventory-backend/app/utils/executor.py
@@ -0,0 +1,25 @@
+import atexit
+import logging
+from concurrent.futures import ThreadPoolExecutor
+
+logger = logging.getLogger(__name__)
+
+# 全局初始化线程池
+_executor = ThreadPoolExecutor(max_workers=4, thread_name_prefix='image_embedding_')
+
+def run_embedding_task(fn, *args, **kwargs):
+    """
+    提交后台任务到线程池
+    """
+    logger.info("Submitting embedding task to background thread...")
+    return _executor.submit(fn, *args, **kwargs)
+
+def _shutdown_executor():
+    """
+    优雅关闭线程池，在 Gunicorn worker 退出时触发
+    """
+    logger.info("Shutting down background thread pool...")
+    _executor.shutdown(wait=False)
+
+# 注册到系统退出事件，这样就不会报 _shutdown not defined 了
+atexit.register(_shutdown_executor)