The present invention discloses an implement method and device of a terminal call firewall. The method comprises: adding a call number into a
blacklist list, when it is determined that the call number is not in the
blacklist list stored and an address
list and it is determined that a
call duration is less than a set
call duration threshold. The device comprises: a storage module, which is connected with a judgment module, and configured to store a
blacklist list and an address list; the judgment module, which is connected with a storage module and a
timer, and configured to
start up the
timer to start timing when a call number is determined not in the blacklist list and the address list; the
timer, which is connected with the judgment module and a
processing module, and configured to make timing for a time length of a
call duration threshold; the
processing module, which is connected with the timer, and configured to add the call number into the blacklist list when the duration of the call is determined less than the call duration threshold. Through the method and the device, the present invention can ensure the terminal to identify unknown harassing call automatically during operation, can add the number of the call directly into the blacklist list, does not bother the user by
ringing or prompting the user of the call, is simple and convenient to be used, and has remarkable practical effect.