File storage space management method for mobile communication terminal

The invention refers to method for managing file memory in mobile communication terminal. The traditional mobile communication terminal application program uses file ID, although it can access the file, it is an access method based on the file name, thus, the file management is dual, the complexity is increased. The invention is made up of following steps: 1. if apply to generate files, then confirms and generates files according to the available capacity of file system; 2. if applies to access files in the files system, it confirms if there exists the file name in the directory and accesses the file; 3. if applies to record the files, it confirms the available capacity of the file system and records. When accessing files, it uses the files name and the directory name to access the files, thus, there has no dual management to files, and it is easy to change the file name.