A WAN module based remote wakeup system and apparatus comprise a terminal including a security control module connected to an embedded controller, a power supply module and a serial port bus led from an WAN module side by a bus connection module, respectively, and the power supply module is connected to the bus connection module. The power supply module is adapted to supply power to the security control module and the bus connection module. The security control module is adapted to perform security verification on information carried by a signal received on the serial port bus led from the bus connection module, and to generate a wakeup signal and send it to the embedded controller if the security verification is successful. The embedded controller is adapted to start the terminal according to the received wakeup signal.