diff --git a/backend/sdk/src/main/java/com/alibaba/higress/sdk/service/kubernetes/KubernetesModelConverter.java b/backend/sdk/src/main/java/com/alibaba/higress/sdk/service/kubernetes/KubernetesModelConverter.java
index f24fa1a2..2a8ac14a 100644
--- a/backend/sdk/src/main/java/com/alibaba/higress/sdk/service/kubernetes/KubernetesModelConverter.java
+++ b/backend/sdk/src/main/java/com/alibaba/higress/sdk/service/kubernetes/KubernetesModelConverter.java
@@ -873,6 +873,10 @@ private static int compareMatchRules(MatchRule r1, MatchRule r2) {
 
     private static void setDefaultValues(V1alpha1WasmPluginSpec spec) {
         spec.setFailStrategy(FailStrategy.FAIL_OPEN.getName());
+
+        if (spec.getDefaultConfigDisable() == null){
+            spec.setDefaultConfigDisable(true);
+        }
     }
 
     private static int compareStringLists(List<String> l1, List<String> l2) {
diff --git a/backend/sdk/src/test/java/com/alibaba/higress/sdk/service/WasmPluginInstanceServiceTest.java b/backend/sdk/src/test/java/com/alibaba/higress/sdk/service/WasmPluginInstanceServiceTest.java
index 35b7291b..0000d104 100644
--- a/backend/sdk/src/test/java/com/alibaba/higress/sdk/service/WasmPluginInstanceServiceTest.java
+++ b/backend/sdk/src/test/java/com/alibaba/higress/sdk/service/WasmPluginInstanceServiceTest.java
@@ -324,7 +324,7 @@ public void addOrUpdateTestFromUserAddInternalConfig() throws Exception {
         V1alpha1WasmPlugin cr = crCaptor.getValue();
         Assertions.assertNotNull(cr);
         Assertions.assertEquals(TEST_BUILT_IN_PLUGIN_INTERNAL_CR_NAME, cr.getMetadata().getName());
-        Assertions.assertNull(cr.getSpec().getDefaultConfigDisable());
+        Assertions.assertTrue(cr.getSpec().getDefaultConfigDisable());
         Assertions.assertNull(cr.getSpec().getDefaultConfig());
         Assertions.assertEquals(1, cr.getSpec().getMatchRules().size());
         MatchRule rule = cr.getSpec().getMatchRules().get(0);