diff --git a/config-template.py b/config-template.py
index 06367cda..b1025463 100644
--- a/config-template.py
+++ b/config-template.py
@@ -60,6 +60,10 @@ response_rules = {
 # 单位：美元
 api_key_fee_threshold = 18.0
 
+# 是否根据估算的使用费用切换api-key
+# 设置为False将只在接口报错超额时自动切换
+auto_switch_api_key = False
+
 # 敏感词过滤开关，以同样数量的*代替敏感词回复
 # 请在sensitive.json中添加敏感词
 sensitive_word_filter = True
diff --git a/pkg/openai/keymgr.py b/pkg/openai/keymgr.py
index a9d95243..2b1a52e4 100644
--- a/pkg/openai/keymgr.py
+++ b/pkg/openai/keymgr.py
@@ -86,7 +86,8 @@ class KeysManager:
 
         self.fee[md5] += fee
 
-        if self.fee[md5] >= self.api_key_fee_threshold:
+        if self.fee[md5] >= self.api_key_fee_threshold and \
+                hasattr(config, 'auto_switch_api_key') and config.auto_switch_api_key:
             switch_result, key_name = self.auto_switch()
 
             # 检查是否切换到新的