diff --git a/cocos2dx/platform/CCFileUtils.cpp b/cocos2dx/platform/CCFileUtils.cpp
index 6a408e324b..e7b073779b 100644
--- a/cocos2dx/platform/CCFileUtils.cpp
+++ b/cocos2dx/platform/CCFileUtils.cpp
@@ -333,18 +333,10 @@ NS_CC_BEGIN
 #endif /* (CC_TARGET_PLATFORM != CC_PLATFORM_IOS) && (CC_TARGET_PLATFORM != CC_PLATFORM_MAC) */
 
 
-static std::map<std::string, std::string> s_fullPathCache;
-
 CCFileUtils* CCFileUtils::s_sharedFileUtils = NULL;
 
 void CCFileUtils::purgeFileUtils()
 {
-    if (s_sharedFileUtils != NULL)
-    {
-        s_sharedFileUtils->purgeCachedEntries();
-        CC_SAFE_RELEASE(s_sharedFileUtils->m_pFilenameLookupDict);
-    }
-    
     CC_SAFE_DELETE(s_sharedFileUtils);
 }
 
@@ -355,7 +347,7 @@ CCFileUtils::CCFileUtils()
 
 CCFileUtils::~CCFileUtils()
 {
-    
+    CC_SAFE_RELEASE(m_pFilenameLookupDict);
 }
 
 bool CCFileUtils::init()
@@ -367,7 +359,7 @@ bool CCFileUtils::init()
 
 void CCFileUtils::purgeCachedEntries()
 {
-    s_fullPathCache.clear();
+    m_fullPathCache.clear();
 }
 
 unsigned char* CCFileUtils::getFileData(const char* pszFileName, const char* pszMode, unsigned long * pSize)
@@ -502,8 +494,8 @@ std::string CCFileUtils::fullPathForFilename(const char* pszFileName)
     }
     
     // Already Cached ?
-    std::map<std::string, std::string>::iterator cacheIter = s_fullPathCache.find(pszFileName);
-    if (cacheIter != s_fullPathCache.end())
+    std::map<std::string, std::string>::iterator cacheIter = m_fullPathCache.find(pszFileName);
+    if (cacheIter != m_fullPathCache.end())
     {
         //CCLOG("Return full path from cache: %s", cacheIter->second.c_str());
         return cacheIter->second;
@@ -526,7 +518,7 @@ std::string CCFileUtils::fullPathForFilename(const char* pszFileName)
             if (fullpath.length() > 0)
             {
                 // Using the filename passed in as key.
-                s_fullPathCache.insert(std::pair<std::string, std::string>(pszFileName, fullpath));
+                m_fullPathCache.insert(std::pair<std::string, std::string>(pszFileName, fullpath));
                 //CCLOG("Returning path: %s", fullpath.c_str());
                 return fullpath;
             }
diff --git a/cocos2dx/platform/CCFileUtils.h b/cocos2dx/platform/CCFileUtils.h
index 876c0db1cf..c034f8b030 100644
--- a/cocos2dx/platform/CCFileUtils.h
+++ b/cocos2dx/platform/CCFileUtils.h
@@ -26,6 +26,7 @@ THE SOFTWARE.
 
 #include <string>
 #include <vector>
+#include <map>
 #include "CCPlatformMacros.h"
 #include "ccTypes.h"
 #include "ccTypeInfo.h"
@@ -258,6 +259,8 @@ public:
     
     /**
      *  Checks whether the path is an absolute path.
+     *  @note On Android, if the parameter passed in is relative to "assets/", this method will treat it as an absolute path.
+     *        Also on Blackberry, path starts with "app/native/Resources/" is treated as an absolute path.
      *
      *  @param strPath The path that needs to be checked.
      */
@@ -342,10 +345,16 @@ protected:
      */
     std::string m_strDefaultResRootPath;
     
+    /**
+     *  The full path cache. When files are found, it will be added into this cache. It could improve the performance of file search.
+     */
+    std::map<std::string, std::string> m_fullPathCache;
+    
     /**
      *  The singleton pointer of CCFileUtils.
      */
     static CCFileUtils* s_sharedFileUtils;
+    
 };
 
 // end of platform group