diff --git a/cocos2dx/base_nodes/CCNode.cpp b/cocos2dx/base_nodes/CCNode.cpp
index 31aed1c1ef..19b1c1239a 100644
--- a/cocos2dx/base_nodes/CCNode.cpp
+++ b/cocos2dx/base_nodes/CCNode.cpp
@@ -326,7 +326,7 @@ CCArray* CCNode::getChildren()
     return m_pChildren;
 }
 
-unsigned int CCNode::getChildrenCount(void)
+unsigned int CCNode::getChildrenCount(void) const
 {
     return m_pChildren ? m_pChildren->count() : 0;
 }
@@ -392,7 +392,7 @@ void CCNode::setAnchorPoint(const CCPoint& point)
 }
 
 /// contentSize getter
-const CCSize& CCNode::getContentSize()
+const CCSize& CCNode::getContentSize() const
 {
     return m_obContentSize;
 }
@@ -441,7 +441,7 @@ void CCNode::ignoreAnchorPointForPosition(bool newValue)
 }
 
 /// tag getter
-int CCNode::getTag()
+int CCNode::getTag() const
 {
     return m_nTag;
 }
diff --git a/cocos2dx/base_nodes/CCNode.h b/cocos2dx/base_nodes/CCNode.h
index 1ecb0fa412..75c72dc59b 100644
--- a/cocos2dx/base_nodes/CCNode.h
+++ b/cocos2dx/base_nodes/CCNode.h
@@ -412,7 +412,7 @@ public:
      *
      * @return The untransformed size of the node.
      */
-    virtual const CCSize& getContentSize();
+    virtual const CCSize& getContentSize() const;
 
     
     /**
@@ -608,7 +608,7 @@ public:
      *
      * @return The amount of children.
      */
-    unsigned int getChildrenCount(void);
+    unsigned int getChildrenCount(void) const;
     
     /**
      * Sets the parent node
@@ -757,7 +757,7 @@ public:
      *
      * @return A interger that identifies the node.
      */
-    virtual int getTag();
+    virtual int getTag() const;
     /**
      * Changes the tag that is used to identify the node easily.
      *