A two-tuple NANDFLASH data file management method oriented to a DSP includes a first step of creating a file table and updating the file table and a second step of conducting data writing or data reading. According to the two-tuple NANDFLASH data file management method oriented to the DSP, 'a piece of information' serves as a unit of data file management, each piece of file table information only occupies 6 bytes, compared with a FAT16 file system, the two-tuple NANDFLASH data file management method oriented to the DSP eliminates about 26 fields, and the file table does not need to be rewritten repeatedly, so that the service life of a Nandflash is conveniently prolonged. Not the 'block' but the 'page' serves as a unit of memorizer management, so that utilization efficiency of a memorizer is improved and waste of memory space is reduced. Data storage is directly written in real time and delay cannot occur. The two-tuple NANDFLASH data file management method oriented to the DSP has the advantages of being simple and direct, reliable, practical, less in CPU resource consumption, and suitable for an embedded system with the DSP as a core processor.