diff --git a/request/parse_body/execute.go b/request/parse_body/execute.go
index 8f68fc3..e404d1d 100644
--- a/request/parse_body/execute.go
+++ b/request/parse_body/execute.go
@@ -55,7 +55,7 @@ func Execute(ctx *gin.Context, receiver any) ([]byte, error) {
 		return nil, errors.New(contentType + " : content_type format error")
 	}
 	// 裁剪出真实的类型，之所以截取，是因为 content_type 中可能还包含编码信息, 如 : application/json;charset=utf8
-	contentType = contentTypeArr[0]
+	contentType = contentTypeFormatArr[1]
 	if _, exist := requestBodyParseAdaptorTable[contentType]; !exist {
 		return nil, errors.New(contentType + " : adaptor not found")
 	}