diff --git a/backend/app/core/__init__.py b/backend/app/core/__init__.py
index 29b0db8..7c53d48 100644
--- a/backend/app/core/__init__.py
+++ b/backend/app/core/__init__.py
@@ -2,13 +2,12 @@
 
 from .formatter import MarkdownFormatter
 from .state_base import BaseState
-from .intent import (
+from .intent_classifier import (
     IntentType,
     IntentResult,
     IntentClassifier,
-    classify_intent
+    get_intent_classifier
 )
-from .intent_classifier import get_intent_classifier
 from .human_review import (
     ReviewManager,
     InMemoryReviewStore,
@@ -16,6 +15,22 @@ from .human_review import (
     HumanReview
 )
 
+# 为了兼容性，添加 classify_intent 函数
+def classify_intent(user_input: str, context: str = None):
+    """兼容旧代码的 classify_intent 函数"""
+    from app.core.intent_classifier import get_intent_classifier
+    import asyncio
+    classifier = get_intent_classifier()
+    try:
+        loop = asyncio.get_event_loop()
+        if loop.is_running():
+            task = loop.create_task(classifier.classify(user_input, context))
+            return asyncio.run_coroutine_threadsafe(task, loop).result()
+    except RuntimeError:
+        loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(loop)
+        return loop.run_until_complete(classifier.classify(user_input, context))
+
 __all__ = [
     "MarkdownFormatter",
     "BaseState",