diff --git a/pipeline_plugins/variables/collections/common.py b/pipeline_plugins/variables/collections/common.py
index 31c69572e..f838d1c60 100644
--- a/pipeline_plugins/variables/collections/common.py
+++ b/pipeline_plugins/variables/collections/common.py
@@ -188,6 +188,7 @@ def process_info_value(cls, info_value):
 
     @classmethod
     def process_meta_value(self, meta_data, info_value):
+        # 子流程变量传递过程中值被处理成字符串，如果是引用子流程变量时从元数据取出没有处理的前的值
         if isinstance(meta_data["value"], str):
             meta_data = meta_data["meta"]
         if meta_data["value"]["datasource"] == "1":