diff --git a/src/gausskernel/optimizer/commands/dropcmds.cpp b/src/gausskernel/optimizer/commands/dropcmds.cpp
index b331e2f8ccd0040de6b2b1f7ffbf4ec59f25fb05..98ace86364eee2998eff2dc308b6d95ebc71d428 100644
--- a/src/gausskernel/optimizer/commands/dropcmds.cpp
+++ b/src/gausskernel/optimizer/commands/dropcmds.cpp
@@ -91,7 +91,10 @@ static void DropExtensionInListIsSupported(List* objname)
         }
     }
 
-    ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), errmsg("EXTENSION is not yet supported.")));
+    /* Enable DROP operation of the above objects during inplace upgrade or support_extended_features is true */
+    if (!u_sess->attr.attr_common.IsInplaceUpgrade && !g_instance.attr.attr_common.support_extended_features) {
+        ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), errmsg("EXTENSION is not yet supported.")));
+    }
 }
 
 /*
diff --git a/src/test/regress/expected/drop_if_exists.out b/src/test/regress/expected/drop_if_exists.out
index 6b3fe60f994156521d8ae119829634b03b0596c6..cb3859c5ced9eec79e1f194cd1f991eb0b420968 100644
--- a/src/test/regress/expected/drop_if_exists.out
+++ b/src/test/regress/expected/drop_if_exists.out
@@ -132,11 +132,7 @@ DROP EXTENSION test_extension_exists;
 ERROR:  extension "test_extension_exists" does not exist
 DROP EXTENSION IF EXISTS test_extension_exists;
 NOTICE:  extension "test_extension_exists" does not exist, skipping
--- exists but doesn't support drop
-DROP EXTENSION plpgsql;
-ERROR:  EXTENSION is not yet supported.
-DROP EXTENSION IF EXISTS plpgsql;
-ERROR:  EXTENSION is not yet supported.
+\c regression
 -- functions
 DROP FUNCTION test_function_exists();
 ERROR:  function test_function_exists does not exist
diff --git a/src/test/regress/sql/drop_if_exists.sql b/src/test/regress/sql/drop_if_exists.sql
index 7fee2a4b33ba561274f6d35a9dcf1fdfe977f82b..1e68cce6b45c605c4d93361b8cb96ff1ee1d1f25 100644
--- a/src/test/regress/sql/drop_if_exists.sql
+++ b/src/test/regress/sql/drop_if_exists.sql
@@ -145,9 +145,7 @@ DROP TEXT SEARCH CONFIGURATION test_tsconfig_exists;
 -- doesn't exists
 DROP EXTENSION test_extension_exists;
 DROP EXTENSION IF EXISTS test_extension_exists;
--- exists but doesn't support drop
-DROP EXTENSION plpgsql;
-DROP EXTENSION IF EXISTS plpgsql;
+\c regression
 
 -- functions
 DROP FUNCTION test_function_exists();