diff --git a/cocos/ui/UIImageView.cpp b/cocos/ui/UIImageView.cpp
index 209878efe1..c9e0590182 100644
--- a/cocos/ui/UIImageView.cpp
+++ b/cocos/ui/UIImageView.cpp
@@ -112,7 +112,7 @@ void ImageView::initRenderer()
 
 void ImageView::loadTexture(const std::string& fileName, TextureResType texType)
 {
-    if (fileName.empty())
+    if (fileName.empty() || (_textureFile == fileName && _imageTexType == texType))
     {
         return;
     }
diff --git a/cocos/ui/UILoadingBar.cpp b/cocos/ui/UILoadingBar.cpp
index acca094563..972e5fd0ed 100644
--- a/cocos/ui/UILoadingBar.cpp
+++ b/cocos/ui/UILoadingBar.cpp
@@ -212,7 +212,7 @@ const Rect& LoadingBar::getCapInsets()const
     
 void LoadingBar::setPercent(float percent)
 {
-    if ( percent < 0 || percent > 100)
+    if ( percent < 0 || percent > 100 || _percent == percent)
     {
         return;
     }
diff --git a/cocos/ui/UIText.cpp b/cocos/ui/UIText.cpp
index 460863db39..2523ce1642 100644
--- a/cocos/ui/UIText.cpp
+++ b/cocos/ui/UIText.cpp
@@ -108,6 +108,10 @@ void Text::initRenderer()
     
 void Text::setString(const std::string &text)
 {
+    if (text == _labelRenderer->getString())
+    {
+        return;
+    }
     _labelRenderer->setString(text);
     updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
     _labelRendererAdaptDirty = true;