diff --git a/graphic/graphic_2d/native_drawing/drawing_bitmap.h b/graphic/graphic_2d/native_drawing/drawing_bitmap.h
index 980c0fcd862a913c4bf872a3597cb6402c96f598..2540c24fb7a9c9d012ea20e75785e636adfa0072 100644
--- a/graphic/graphic_2d/native_drawing/drawing_bitmap.h
+++ b/graphic/graphic_2d/native_drawing/drawing_bitmap.h
@@ -128,28 +128,6 @@ uint32_t OH_Drawing_BitmapGetWidth(OH_Drawing_Bitmap*);
  */
 uint32_t OH_Drawing_BitmapGetHeight(OH_Drawing_Bitmap*);
 
-/**
- * @brief Obtains the color format of a bitmap.
- *
- * @syscap SystemCapability.Graphic.Graphic2D.NativeDrawing
- * @param OH_Drawing_Bitmap Indicates the pointer to an <b>OH_Drawing_Bitmap</b> object.
- * @return Returns the bitmap color format.
- * @since 12
- * @version 1.0
- */
-OH_Drawing_ColorFormat OH_Drawing_BitmapGetColorFormat(OH_Drawing_Bitmap*);
-
-/**
- * @brief Obtains the alpha format of a bitmap.
- *
- * @syscap SystemCapability.Graphic.Graphic2D.NativeDrawing
- * @param OH_Drawing_Bitmap Indicates the pointer to an <b>OH_Drawing_Bitmap</b> object.
- * @return Returns the bitmap alpha format.
- * @since 12
- * @version 1.0
- */
-OH_Drawing_AlphaFormat OH_Drawing_BitmapGetAlphaFormat(OH_Drawing_Bitmap*);
-
 /**
  * @brief Obtains the pixel address of a bitmap. You can use this address to obtain the pixel data of the bitmap.
  *
diff --git a/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json b/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json
index d8586b349e19d12808e182919e7b24210e30abde..165a808afeef314e4556c73cd98db84fd5d6e61d 100644
--- a/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json
+++ b/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json
@@ -5,14 +5,6 @@
     { "name": "OH_Drawing_BitmapCreateFromPixels" },
     { "name": "OH_Drawing_BitmapGetWidth" },
     { "name": "OH_Drawing_BitmapGetHeight" },
-    {
-        "first_introduced": "12",
-        "name": "OH_Drawing_BitmapGetColorFormat"
-    },
-    {
-        "first_introduced": "12",
-        "name": "OH_Drawing_BitmapGetAlphaFormat"
-    },
     {
         "first_introduced": "12",
         "name": "OH_Drawing_BitmapGetImageInfo"