diff --git a/backend/app/crypto_agent/crypto_agent.py b/backend/app/crypto_agent/crypto_agent.py
index 0d66106..1aa935c 100644
--- a/backend/app/crypto_agent/crypto_agent.py
+++ b/backend/app/crypto_agent/crypto_agent.py
@@ -352,7 +352,9 @@ class CryptoAgent:
             return False
 
         confidence = signal.get('confidence', 0)
-        if confidence < 70:
+        # 使用配置文件中的阈值
+        threshold = self.settings.crypto_llm_threshold * 100  # 转换为百分比
+        if confidence < threshold:
             return False
 
         # 检查冷却时间（30分钟内不重复发送相同方向的信号）