diff --git a/graphic/graphic_2d/native_drawing/drawing_region.h b/graphic/graphic_2d/native_drawing/drawing_region.h
index 39eb09315f1966fd014b9e50d8220cb145a6eac9..b84673138fc144f0c56995437c5446c4d1d70402 100644
--- a/graphic/graphic_2d/native_drawing/drawing_region.h
+++ b/graphic/graphic_2d/native_drawing/drawing_region.h
@@ -40,6 +40,7 @@
  * @version 1.0
  */
 
+#include "drawing_error_code.h"
 #include "drawing_types.h"
 
 #ifdef __cplusplus
@@ -140,6 +141,20 @@ bool OH_Drawing_RegionSetRect(OH_Drawing_Region* region, const OH_Drawing_Rect*
  */
 bool OH_Drawing_RegionSetPath(OH_Drawing_Region* region, const OH_Drawing_Path* path, const OH_Drawing_Region* clip);
 
+/**
+ * @brief Determine whether the region is a rect with positive dimensional.
+ *
+ * @syscap SystemCapability.Graphic.Graphic2D.NativeDrawing
+ * @param OH_Drawing_Region Indicates the pointer to an <b>OH_Drawing_Region</b> object.
+ * @param isRect Indicates if drawable area is empty.
+ * @return Returns the error code.
+ *         Returns {@link OH_DRAWING_SUCCESS} if the operation is successful.
+ *         Returns {@link OH_DRAWING_ERROR_INVALID_PARAMETER} if cRegion or isRect is nullptr.
+ * @since 14
+ * @version 1.0
+ */
+OH_Drawing_ErrorCode OH_Drawing_RegionIsRect(const OH_Drawing_Region* cRegion, bool* isRect);
+
 /**
  * @brief Destroys an <b>OH_Drawing_Region</b> object and reclaims the memory occupied by the object.
  *
diff --git a/graphic/graphic_2d/native_drawing/drawing_shader_effect.h b/graphic/graphic_2d/native_drawing/drawing_shader_effect.h
index f3a6245c008d20e5a40266080094b6e5b49728bf..49247968bfecd373f79caca7725e4967bc077a53 100644
--- a/graphic/graphic_2d/native_drawing/drawing_shader_effect.h
+++ b/graphic/graphic_2d/native_drawing/drawing_shader_effect.h
@@ -224,6 +224,22 @@ OH_Drawing_ShaderEffect* OH_Drawing_ShaderEffectCreateTwoPointConicalGradient(co
     float startRadius, const OH_Drawing_Point2D* endPt, float endRadius, const uint32_t* colors, const float* pos,
     uint32_t size, OH_Drawing_TileMode, const OH_Drawing_Matrix*);
 
+/**
+ * @brief Creates an <b>OH_Drawing_ShaderEffect</b> that generates a blend shader by two shaders.
+ *
+ * @syscap SystemCapability.Graphic.Graphic2D.NativeDrawing
+ * @param dstShaderEffect Indicates the destination pointer to an <b>OH_Drawing_ShaderEffect</b> object.
+ * @param srcShaderEffect Indicates the source pointer to an <b>OH_Drawing_ShaderEffect</b> object.
+ * @param blendMode Indicates the center of the start circle for the gradient.
+ * @return Returns the pointer to the <b>OH_Drawing_ShaderEffect</b> object created.
+ *         If nullptr is returned, the creation fails.
+ *         The possible cause of the failure is any of dstShaderEffect and srcShaderEffect is nullptr.
+ * @since 14
+ * @version 1.0
+ */
+OH_Drawing_ShaderEffect* OH_Drawing_ShaderEffectCreateBlendShader(OH_Drawing_ShaderEffect* dstShaderEffect,
+    OH_Drawing_ShaderEffect* srcShaderEffect, OH_Drawing_BlendMode blendMode);
+y
 /**
  * @brief Destroys an <b>OH_Drawing_ShaderEffect</b> object and reclaims the memory occupied by the object.
  *
diff --git a/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json b/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json
index 3f0f7905b62de328131d4b4575952e30497f76c1..2c97ca6576321a1e430d16b6ea1bc45af3124c71 100644
--- a/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json
+++ b/graphic/graphic_2d/native_drawing/libnative_drawing.ndk.json
@@ -663,6 +663,10 @@
         "first_introduced": "12",
         "name": "OH_Drawing_ShaderEffectCreateTwoPointConicalGradient"
     },
+    {
+        "first_introduced": "14",
+        "name": "OH_Drawing_ShaderEffectCreateBlendShader"
+    },
     { "name": "OH_Drawing_ShaderEffectDestroy" },
     {
         "first_introduced": "12",
@@ -1146,6 +1150,10 @@
         "first_introduced": "12",
         "name": "OH_Drawing_RegionSetPath"
     },
+    {
+        "first_introduced": "14",
+        "name": "OH_Drawing_RegionIsRect"
+    },
     {
         "first_introduced": "12",
         "name": "OH_Drawing_RegionDestroy"