diff --git a/docs/source/sls/data_model.md b/docs/source/sls/data_model.md
index 775e76e8cd63dc992f7a43320f1ae394959938c0..158e21a3eccd4d1581e5df6a308cf2717b22fc91 100644
--- a/docs/source/sls/data_model.md
+++ b/docs/source/sls/data_model.md
@@ -54,8 +54,6 @@ COMMENT ==================================================================
 
 #### Header of `csst_ms_sls_instrument`
 
-`IMAGE STATISTICS AND DATA QUALITY FLAGS` 需要修改成为标准格式，首字母大写
-增加宇宙线证认相关关键字
 
 | keyword   | value    | comment                                 | fallback_value | type | last modified                   |
 |-----------|:---------|-----------------------------------------|----------------|------|--------------------------|