diff --git a/docs-2.0/nebula-studio/about-studio/st-ug-limitations.md b/docs-2.0/nebula-studio/about-studio/st-ug-limitations.md
index 2ea7ff5ddec..318c1bdcac6 100644
--- a/docs-2.0/nebula-studio/about-studio/st-ug-limitations.md
+++ b/docs-2.0/nebula-studio/about-studio/st-ug-limitations.md
@@ -12,15 +12,15 @@ This topic introduces the limitations of Studio.
 | --- | --- |
 | 1.x | 1.x|
 | 2.0 & 2.0.1 | 2.x |
-| 2.5.0 | 3.0.0 |
+| 2.5.0 & 2.5.1 | 3.0.0 |
 | 2.6.0 | 3.1.0 |
 
-
 ## Architecture
 
 For now, Docker-based and RPM-based Studio v3.x supports x86_64 architecture only.
 
 ## Upload data
+
 <!--
 During the public beta of Nebula Graph Cloud Service, Studio on Cloud has these limitations:
 
@@ -28,7 +28,9 @@ During the public beta of Nebula Graph Cloud Service, Studio on Cloud has these
 - Each file of a maximum of 100 MB is supported.
 - A total amount of a maximum of 1 GB is supported for each Nebula graph instance.
 - Each file is stored for only one calendar day.
+
 -->
+
 Only CSV files without headers can be uploaded, but no limitations are applied to the size and store period for a single file. The maximum data volume depends on the storage capacity of your machine.
 
 ## Data backup
@@ -53,6 +55,7 @@ For Studio on Cloud, besides the preceding syntax, you cannot run these account
 
 For more information about the preceding statements, see[Nebula Graph Database Manual](https://docs.nebula-graph.io/2.0.1/7.data-security/1.authentication/2.management-user/)
 -->
+
 ## Browser
 
 We recommend that you use Chrome to get access to Studio.
diff --git a/docs-2.0/nebula-studio/about-studio/st-ug-release-note.md b/docs-2.0/nebula-studio/about-studio/st-ug-release-note.md
index c6cee6e1322..2be73637ebe 100644
--- a/docs-2.0/nebula-studio/about-studio/st-ug-release-note.md
+++ b/docs-2.0/nebula-studio/about-studio/st-ug-release-note.md
@@ -1,13 +1,16 @@
 # Change Log
 
 ## v3.1.0 (2021.10.29)
-- Feature Enhancements:
+
+- Feature enhancements:
   - Compatible with Nebula Graph v2.6.0.
   - Added the use of Helm to deploy and start Studio in the Kubernetes cluster.
-  - Explorer:
+  - Added GEO.
+  - Explorer
     - Added the function of modifying the vertex icon.
+
 - Fix:
-  - Schema:
+  - Schema
     - Fix the problem that some operations of the tag/edge/property named after keywords will report errors.
     - Fix the problem of incomplete data types by adding date/time/datetime/int32/int16/int8.
 
@@ -15,6 +18,8 @@
   - Remove Studio's dependency on nebula-importer and use http-gateway to be compatible with related functions.
 
 ## v3.0.0 (2021.08.13)
-- Feature Enhancements:
+
+- Feature enhancements:
+
   - Compatible with Nebula Graph v2.5.0.
   - Supported adding `COMMENT` in Space, Tag, Edge Type, Index while configuration Schema.
diff --git a/docs-2.0/nebula-studio/about-studio/st-ug-what-is-graph-studio.md b/docs-2.0/nebula-studio/about-studio/st-ug-what-is-graph-studio.md
index ab8b1b12c7e..30516aa0682 100644
--- a/docs-2.0/nebula-studio/about-studio/st-ug-what-is-graph-studio.md
+++ b/docs-2.0/nebula-studio/about-studio/st-ug-what-is-graph-studio.md
@@ -4,15 +4,18 @@ Nebula Graph Studio (Studio in short) is a browser-based visualization tool to m
 
 ## Released versions
 
-For now, Studio has three release versions:
+You can deploy Studio using the following methods:
 
 - Docker-based. You can deploy Studio with Docker and connect it to Nebula Graph. For more information, see [Docker-based Studio](../deploy-connect/st-ug-deploy.md).
-
 - RPM-based. You can deploy Studio with RPM and connect it to Nebula Graph. For more information, see [RPM-based Studio](../deploy-connect/st-ug-deploy.md).
+- Tar-based. You can deploy Studio with tar and connect it to Nebula Graph. For more information, see [tar-based Studio](../deploy-connect/st-ug-deploy.md).
+- Helm-based. You can deploy Studio with Helm in the Kubernetes cluster and connect it to Nebula Graph. For more information, see [Helm-based Studio](../deploy-connect/st-ug-deploy-by-helm.md).
 
-- tar-based. You can deploy Studio with tar and connect it to Nebula Graph. For more information, see [tar-based Studio](../deploy-connect/st-ug-deploy.md).
+<!--
+- Cloud Service: You can create Nebula Graph database instances in Nebula Graph Cloud Service and connect Cloud Service Studio with one click. For more information, see [Nebula Graph Cloud Service Manual](https://cloud-docs.nebula-graph.com.cn/cn/posts/manage-instances/dbaas-ug-connect-nebulastudio/ "Click to go to Nebula Graph Cloud Service Manual").
+-->
 
-The functions of the three released versions are the same and may be restricted when using Studio. For more information, see [Limitations](../about-studio/st-ug-limitations.md).
+The functions of the above four deployment methods are the same and may be restricted when using Studio. For more information, see [Limitations](../about-studio/st-ug-limitations.md).
 
 ## Features
 
@@ -39,6 +42,7 @@ You can use Studio in one of these scenarios:
 - You are a beginner of nGQL (Nebula Graph Query Language) and you prefer to use a GUI rather than a command-line interface (CLI) to learn the language.  
 
 ## Authentication
+
 <!--
 For Studio on Cloud, only the instance creator and the Nebula Graph Cloud Service accounts that are authorized to manipulate data in Nebula Graph can connect to Studio. For more information, see [Nebula Graph Cloud Service User Guide](https://cloud-docs.nebula-cloud.io/en/posts/toc/dbaas-ug-toc/).
 -->