diff --git a/relay/channel/claude/adaptor.go b/relay/channel/claude/adaptor.go
index dbdfa564..4636691e 100644
--- a/relay/channel/claude/adaptor.go
+++ b/relay/channel/claude/adaptor.go
@@ -60,7 +60,7 @@ func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
 }
 
 func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *relaycommon.RelayInfo) error {
-	if model_setting.GetGlobalSettings().PassThroughRequestEnabled {
+	if model_setting.GetGlobalSettings().PassThroughRequestEnabled || info.ChannelSetting.PassThroughBodyEnabled {
 		// 穿透模式：直接复制原始请求头，但跳过系统级头信息
 		for key, values := range c.Request.Header {
 			keyLower := strings.ToLower(key)