diff --git a/cocos2dx/include/CCRenderTexture.h b/cocos2dx/include/CCRenderTexture.h
index 15c6bc4c77..a7ecd0b367 100644
--- a/cocos2dx/include/CCRenderTexture.h
+++ b/cocos2dx/include/CCRenderTexture.h
@@ -85,7 +85,8 @@ public:
     void clear(float r, float g, float b, float a);
 
 	/** saves the texture into a file */
-	bool saveBuffer(const char *name);
+	// para szFilePath      the absolute path to save
+	bool saveBuffer(const char *szFilePath);
 	/** saves the texture into a file. The format can be JPG or PNG */
 	bool saveBuffer(const char *name, int format);
 
diff --git a/cocos2dx/misc_nodes/CCRenderTexture.cpp b/cocos2dx/misc_nodes/CCRenderTexture.cpp
index fd2b81a7ff..78911e3007 100644
--- a/cocos2dx/misc_nodes/CCRenderTexture.cpp
+++ b/cocos2dx/misc_nodes/CCRenderTexture.cpp
@@ -216,13 +216,21 @@ void CCRenderTexture::clear(float r, float g, float b, float a)
 	this->end();
 }
 
-bool CCRenderTexture::saveBuffer(const char *name)
+bool CCRenderTexture::saveBuffer(const char *szFilePath)
 {
-	return this->saveBuffer(name, kCCImageFormatJPG);
+	bool bRet = false;
+
+	CCImage *pImage = new CCImage();
+	if (pImage != NULL && getUIImageFromBuffer(pImage))
+	{
+		bRet = pImage->saveToFile(szFilePath);
+	}
+
+	CC_SAFE_DELETE(pImage);
+	return bRet;
 }
 bool CCRenderTexture::saveBuffer(const char *fileName, int format)
 {
-
 	bool bRet = false;
 	CCAssert(format == kCCImageFormatJPG || format == kCCImageFormatPNG,
 			 "the image can only be saved as JPG or PNG format");