The invention discloses a digital television terminal based on a broadcast television network system. The digital television terminal based on the broadcast television network system comprises a master controller. The master controller is connected with a memory storage unit, a switch power source, a photocoupling circuit, a user identity recognition module, a payment information recognition module and a signal receiving unit. By the digital television terminal, the original video request program which is played before the digital television terminal is shut down or in a standby mode can be recovered after the identity of a user is recognized, and the user experience is improved.