diff --git a/docs-2.0/3.ngql-guide/1.nGQL-overview/1.overview.md b/docs-2.0/3.ngql-guide/1.nGQL-overview/1.overview.md
index e59eb5bd515..eda6841ccb2 100644
--- a/docs-2.0/3.ngql-guide/1.nGQL-overview/1.overview.md
+++ b/docs-2.0/3.ngql-guide/1.nGQL-overview/1.overview.md
@@ -89,11 +89,17 @@ The latest release is openCypher 9. The compatible parts of openCypher in nGQL a
 
 NO.
 
-!!! compatibility "nGQL is partially compatible with DQL in openCypher 9"
+!!! compatibility "Compatibility with openCypher"
 
-    nGQL is designed to be compatible with part of DQL (match) and is not planned to be compatible with any DDL, DML, or DCL.
+    nGQL is designed to be compatible with part of DQL (match, optional match, with, etc.).
+    
+    - It is not planned to be compatible with any DDL, DML, or DCL.
+    - It is not planned to be compatible with the Bolt Protocol.
+    - It is not planned to be compatible with APOC and GDS.
+
+    Users can search in this manual with the keyword `compatibility` to find major compatibility issues.  
 
-    Multiple known incompatible items are listed in [Nebula Graph Issues](https://github.com/vesoft-inc/nebula-graph/issues?q=is%3Aissue+is%3Aopen+label%3Aincompatible). Submit an issue with the `incompatible` tag if you find a new issue of this type. Users can search in this manual with the keyword `compatibility` to find major compatibility issues.
+    Multiple known incompatible items are listed in [Nebula Graph Issues](https://github.com/vesoft-inc/nebula-graph/issues?q=is%3Aissue+is%3Aopen+label%3Aincompatible). Submit an issue with the `incompatible` tag if you find a new issue of this type. 
 
 ### What are the major differences between nGQL and openCypher 9?