diff --git a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeImageAdaptor.cpp b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeImageAdaptor.cpp
index f8a4f7b414a6aa2c0b30fac451832cdd79535e3e..1323233ac68d18cfe34e5c33637581400e8d1e2f 100644
--- a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeImageAdaptor.cpp
+++ b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeImageAdaptor.cpp
@@ -199,7 +199,13 @@ bool NativeImageAdaptor::InitNativeWindow()
         LOGE("OH_NativeWindow_GetSurfaceId fail");
     }
     OH_NativeWindow_DestroyNativeWindow(nativeWindow);
-
+    OH_NativeBuffer* testbuffer;
+    OH_NativeBuffer_Config config111 {
+        .width = 100,
+        .height = 100,
+        .format = OH_NativeBuffer_Format::NATIVEBUFFER_PIXEL_FMT_BGRA_8888
+    };
+    testbuffer = OH_NativeBuffer_Alloc(&config111);
     return true;
 }
 
diff --git a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.cpp b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.cpp
index f69d9178a515ff867469d2b9179322596880556b..01bb75b47b0f64742169b8383249cc7a7a6b9173 100644
--- a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.cpp
+++ b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.cpp
@@ -18,6 +18,7 @@
 #include <sys/mman.h>
 #include "logger_common.h"
 #include "IPCKit/ipc_cparcel.h"
+#include "native_window/graphic_error_code.h"
 
 namespace NativeWindowSample {
 void OnSurfaceCreatedCB(OH_NativeXComponent* component, void* window)
@@ -91,6 +92,7 @@ bool NativeRender::Export(napi_env env, napi_value exports)
 
     napi_property_descriptor desc[] = {
         { "DrawColor", nullptr, NativeRender::NapiOnDraw, nullptr, nullptr, nullptr, napi_default, nullptr },
+        { "CleanCache", nullptr, NativeRender::NapiOnCleanCache, nullptr, nullptr, nullptr, napi_default, nullptr },
         { "ChangeScalingMode", nullptr, NativeRender::NapiOnChangeScalingMode, nullptr, nullptr, nullptr,
             napi_default, nullptr },
     };
@@ -140,6 +142,12 @@ napi_value NativeRender::NapiOnDraw(napi_env env, napi_callback_info info)
     return nullptr;
 }
 
+napi_value NativeRender::NapiOnCleanCache(napi_env env, napi_callback_info info)
+{
+    NativeRender::GetInstance()->CleanCache();
+    return nullptr;
+}
+
 napi_value NativeRender::NapiOnChangeScalingMode(napi_env env, napi_callback_info info)
 {
     NativeRender::GetInstance()->ChangeScalingMode();
@@ -260,6 +268,11 @@ void NativeRender::ChangeColor()
     DrawBaseColor();
 }
 
+void NativeRender::CleanCache()
+{
+    OH_NativeWindow_CleanCache(nativeWindow_);
+}
+
 void NativeRender::ChangeScalingMode()
 {
     flagFit_ = !flagFit_;
@@ -268,7 +281,6 @@ void NativeRender::ChangeScalingMode()
     } else {
         OH_NativeWindow_NativeWindowSetScalingModeV2(nativeWindow_, OH_SCALING_MODE_SCALE_CROP_V2);
     }
-
     DrawBaseColor();
 }
 }
\ No newline at end of file
diff --git a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.h b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.h
index 25ddd46640d22a94e02b2fa04d93214c5171bccb..7f6b454e12e1f70c139f722d2f0539bdf8d36452 100644
--- a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.h
+++ b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/cpp/NativeRender.h
@@ -28,12 +28,14 @@ public:
     static napi_value GetNativeRender(napi_env env, napi_callback_info info);
     static napi_value NapiOnDraw(napi_env env, napi_callback_info info);
     static napi_value NapiOnChangeScalingMode(napi_env env, napi_callback_info info);
+    static napi_value NapiOnCleanCache(napi_env env, napi_callback_info info);
     static void Release();
     bool Export(napi_env env, napi_value exports);
     void DrawBaseColor();
     void ChangeColor();
     void ChangeScalingMode();
     void SetNativeWindow(OHNativeWindow* nativeWindow, uint64_t width,  uint64_t height);
+    void CleanCache();
 
 private:
     void NativeBufferApi();
diff --git a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/interface/NativeWindowContext.ts b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/interface/NativeWindowContext.ts
index 7a1dfe24b8f3d8a1f6acf8cf7c804973ef13a2ef..59b96cd5da035c7a4597a89be260421f27dc5d12 100644
--- a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/interface/NativeWindowContext.ts
+++ b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/interface/NativeWindowContext.ts
@@ -39,4 +39,5 @@ export default interface NativeWindowContext {
   GetBufferQueueSize(): number;
   GetAttachBufferCount(): number;
   GetCacheBufferCount(): number;
+  CleanCache(): number;
 };
diff --git a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/pages/Index.ets b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/pages/Index.ets
index ff69360f918b713f0d3a3ea141aa2f19c6572881..ebf3ad2e935e0fc3df0965d954737fcc7d06d4fc 100644
--- a/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/pages/Index.ets
+++ b/code/BasicFeature/Native/NdkNativeWindow/entry/src/main/ets/pages/Index.ets
@@ -158,16 +158,28 @@ struct Index {
         }
       })
       .height(60)
-      Button(`attach buffer`)
-        .fontSize('14fp')
-        .fontWeight(500)
-        .margin({ bottom: 24 })
-        .onClick(() => {
-          if (this.nativeWindowContext) {
-            this.nativeWindowContext.AttachBuffer();
-          }
-        })
-        .height(40)
+      Row() {
+        Button(`attach buffer`)
+          .fontSize('14fp')
+          .fontWeight(500)
+          .margin({ bottom: 24 })
+          .onClick(() => {
+            if (this.nativeWindowContext) {
+              this.nativeWindowContext.AttachBuffer();
+            }
+          })
+          .height(40)
+        Button(`clean cache`)
+          .fontSize('14fp')
+          .fontWeight(500)
+          .margin({ bottom: 24 })
+          .onClick(() => {
+            if (this.nativeWindowContext) {
+              this.nativeWindowContext.CleanCache();
+            }
+          })
+          .height(40)
+      }
       Button(`dettach buffer`)
         .fontSize('14fp')
         .fontWeight(500)