diff --git a/3rd_src/pom.xml b/3rd_src/pom.xml
index 7ee27804fc830bc455064cd0be0537aaf2a12d8c..d1b1f344cd29b10d35598d7909d544012c4f6509 100644
--- a/3rd_src/pom.xml
+++ b/3rd_src/pom.xml
@@ -327,12 +327,6 @@
             <version>1.10.19</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.yaml</groupId>
-            <artifactId>snakeyaml</artifactId>
-            <version>1.30</version>
-        </dependency>
-
         <dependency>
             <groupId>org.eclipse.core</groupId>
             <artifactId>org.eclipse.core.contenttype</artifactId>
diff --git a/Third_Party_Open_Source_Software_List.yaml b/Third_Party_Open_Source_Software_List.yaml
index 419348db31335204931c862126654e353e52bc24..023787056a0fbb3cd6cba6d9b029111cadfc28a0 100644
--- a/Third_Party_Open_Source_Software_List.yaml
+++ b/Third_Party_Open_Source_Software_List.yaml
@@ -238,11 +238,6 @@ mockito-all:
   groupId: org.mockito
   url: null
   version: 1.10.19
-snakeyaml: 
-  cpeName: snakeyaml
-  groupId: org.yaml
-  url: null
-  version: 1.30
 org.eclipse.core.contenttype: 
   cpeName: org.eclipse.core.contenttype
   groupId: org.eclipse.core
diff --git a/code/datastudio/src/copyExternalsToBuild.bat b/code/datastudio/src/copyExternalsToBuild.bat
index 0be7b37bc0210bfce3878973b8780e42a8115a97..5bc2068393f5e2ac7d4ab0644476a8168a36e609 100644
--- a/code/datastudio/src/copyExternalsToBuild.bat
+++ b/code/datastudio/src/copyExternalsToBuild.bat
@@ -119,7 +119,6 @@ xcopy %SOURCE%\3rd_src\target\dependency\javassist-3.20.0-GA.jar %TEST%\org.open
 xcopy %SOURCE%\3rd_src\target\dependency\jcommander-1.27.jar %TEST%\org.opengauss.mppdbide.bl.test.fragment\lib\.
 xcopy %SOURCE%\3rd_src\target\dependency\mockito-all-1.10.19.jar %TEST%\org.opengauss.mppdbide.bl.test.fragment\lib\.
 xcopy %SOURCE%\3rd_src\target\dependency\objenesis-3.2.jar %TEST%\org.opengauss.mppdbide.bl.test.fragment\lib\.
-xcopy %SOURCE%\3rd_src\target\dependency\snakeyaml-1.30.jar %TEST%\org.opengauss.mppdbide.bl.test.fragment\lib\.
 xcopy %SOURCE%\platform\Gauss200\gs_jdbc\gsjdbc4.jar %TEST%\org.opengauss.mppdbide.bl.test.fragment\lib\.
 xcopy %SOURCE%\platform\Gauss200\gs_jdbc\mockrunner-jdbc.jar %TEST%\org.opengauss.mppdbide.bl.test.fragment\lib\.
 
diff --git a/code/datastudio/src/copyExternalsToBuild.sh b/code/datastudio/src/copyExternalsToBuild.sh
index b23aead61171ef0fa8c72f1584b0fbeea026bd72..1fa6c1a37d0086b279a4fdcd813a37db8b9cf157 100644
--- a/code/datastudio/src/copyExternalsToBuild.sh
+++ b/code/datastudio/src/copyExternalsToBuild.sh
@@ -120,7 +120,6 @@ cp $SOURCE/3rd_src/target/dependency/javassist-3.20.0-GA.jar $TEST/org.opengauss
 cp $SOURCE/3rd_src/target/dependency/jcommander-1.27.jar $TEST/org.opengauss.mppdbide.bl.test.fragment/lib/.
 cp $SOURCE/3rd_src/target/dependency/mockito-all-1.10.19.jar $TEST/org.opengauss.mppdbide.bl.test.fragment/lib/.
 cp $SOURCE/3rd_src/target/dependency/objenesis-3.2.jar $TEST/org.opengauss.mppdbide.bl.test.fragment/lib/.
-cp $SOURCE/3rd_src/target/dependency/snakeyaml-1.30.jar $TEST/org.opengauss.mppdbide.bl.test.fragment/lib/.
 cp $SOURCE/platform/Gauss200/gs_jdbc/gsjdbc4.jar $TEST/org.opengauss.mppdbide.bl.test.fragment/lib/.
 cp $SOURCE/platform/Gauss200/gs_jdbc/mockrunner-jdbc.jar $TEST/org.opengauss.mppdbide.bl.test.fragment/lib/.
 
diff --git a/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/META-INF/MANIFEST.MF b/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/META-INF/MANIFEST.MF
index 93ec577fc6294ca2fa995a3a1c0cb0d2c4998603..f01a252965412070b9339b5f2c8260fab7d59836 100644
--- a/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/META-INF/MANIFEST.MF
+++ b/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/META-INF/MANIFEST.MF
@@ -39,7 +39,6 @@ Bundle-ClassPath: lib/mockrunner-jdbc.jar,
  lib/jcommander-1.27.jar,
  lib/mockito-all-1.10.19.jar,
  lib/objenesis-3.2.jar,
- lib/snakeyaml-1.30.jar,
  lib/gsjdbc4.jar
 Eclipse-ExtensibleAPI: true 
 Require-Bundle: org.opengauss.dbdriver.jdbc.gauss;bundle-version="1.0.0",
diff --git a/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/build.properties b/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/build.properties
index 5b5ca495c3a46405e76c4ed513e7d614f4c988f0..9a494f598514b489fb59c4a852d5f8edcf9e09c4 100644
--- a/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/build.properties
+++ b/code/datastudio/testcode/LLT/org.opengauss.mppdbide.bl.test.fragment/build.properties
@@ -33,6 +33,5 @@ bin.includes = META-INF/,\
                lib/jcommander-1.27.jar,\
                lib/mockito-all-1.10.19.jar,\
                lib/objenesis-3.2.jar,\
-               lib/snakeyaml-1.30.jar,\
                lib/gsjdbc4.jar,\
                lib/mockrunner-jdbc.jar