This invention discloses one list record system, which comprises business unit and list memory unit, wherein, business unit is to record list buffer to send to the phone list memory unit; the memory unit is to receive business unit data to store into database. This invention also discloses one list system composed of business operation module, buffer module and list write module. This invention also discloses one list method, which comprises steps of buffer of record list data and reading phone list and storing into database files.