diff --git a/README.en.md b/README.en.md
index e0993509a5467cca308506b371a84d01ae5bd715..106a26c950f000d10c61fd246a2a5bc8c7b754d5 100644
--- a/README.en.md
+++ b/README.en.md
@@ -2,7 +2,7 @@
 
 ## Version introduction
 
-This version is version 3.1.0 of opengauss Data Studio, which mainly provides the following functions:
+This version is version 3.1.1 of opengauss Data Studio, which mainly provides the following functions:
 
 - Manage / create database objects (functions, stored procedures, tables, views, sequences, triggers, etc.)
 - Execute SQL statements or SQL scripts
diff --git a/README.md b/README.md
index 23f6a46d1dfa4f231a98389ca3d496e73f4dbc2f..7445b24c1f6fde184d2a88a03fff0c1616351ff1 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ## 版本介绍
 
-本版本为openGauss Data Studio的3.1.0版本，主要提供如下功能：
+本版本为openGauss Data Studio的3.1.1版本，主要提供如下功能：
 
 - 管理/创建数据库对象（函数、存储过程、表、视图、序列、触发器等）
 - 执行SQL语句或者SQL脚本
diff --git a/code/datastudio/src/org.opengauss.mppdbide.view/src/org/opengauss/mppdbide/view/dto/version/UIVersionDO.java b/code/datastudio/src/org.opengauss.mppdbide.view/src/org/opengauss/mppdbide/view/dto/version/UIVersionDO.java
index f86efb952db75e76b60ceb5e87c485080a87bcaf..dbf12a3a90d25740dc0fbaa7365955d23dde668c 100644
--- a/code/datastudio/src/org.opengauss.mppdbide.view/src/org/opengauss/mppdbide/view/dto/version/UIVersionDO.java
+++ b/code/datastudio/src/org.opengauss.mppdbide.view/src/org/opengauss/mppdbide/view/dto/version/UIVersionDO.java
@@ -30,7 +30,7 @@ public class UIVersionDO {
     private static final int VERSION = 3;
     private static final String DOT = ".";
     private static final int SUB_VERSION = 1;
-    private static final int SUB_SUB_VERSION = 0;
+    private static final int SUB_SUB_VERSION = 1;
     private static final String MINOR_VERSION = "";
 
     /**
diff --git a/information/datastudio/Data Studio User Manual.pdf b/information/datastudio/Data Studio User Manual.pdf
index 00f7c47f267c8b25dda9c651d88d5909aebec9f0..d635976c334fa942deec3456a0e052e68a625b9c 100644
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diff --git "a/information/datastudio/Data Studio \347\224\250\346\210\267\346\211\213\345\206\214.pdf" "b/information/datastudio/Data Studio \347\224\250\346\210\267\346\211\213\345\206\214.pdf"
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Binary files "a/information/datastudio/Data Studio \347\224\250\346\210\267\346\211\213\345\206\214.pdf" and "b/information/datastudio/Data Studio \347\224\250\346\210\267\346\211\213\345\206\214.pdf" differ
diff --git a/information/datastudio/changelog.txt b/information/datastudio/changelog.txt
index 8f5787422a0ea78964dc1862eeca7ab3065b849c..38a4c42e98add97e6e5f5e0ea766151506e6718f 100644
--- a/information/datastudio/changelog.txt
+++ b/information/datastudio/changelog.txt
@@ -1,4 +1,4 @@
-Data Studio 3.1.0
+Data Studio 3.1.1
 =====================================================================================================
-This is a version of Data Studio supporting openGauss 3.1.0
+This is a version of Data Studio supporting openGauss 3.1.1
 =====================================================================================================
diff --git a/information/datastudio/readme.txt b/information/datastudio/readme.txt
index 095f1981e40f688e2774504fee19b03377b1391f..4a4cf9fd1aeb0c3fbc9f5ce2a02130162a2b5c80 100644
--- a/information/datastudio/readme.txt
+++ b/information/datastudio/readme.txt
@@ -1,4 +1,4 @@
-Data Studio 3.1.0
+Data Studio 3.1.1
 ========================================================================
 
 
@@ -28,7 +28,7 @@ Java 11 or later
 
 Databases:
 ----------------------------------------------------------------------
-openGauss  3.1.0
+openGauss  3.1.1
 
 
 INSTALLATION