This invention relates the reset technology especially a kind of foreknowledge reset technology using the processor. A kind of processor reset system concludes: processor and watchdog module and the watchdog module is used to monitor the running state of processor and when the processor is abnormal it outputs the reset request signal; the processor readies to reset according to the received reset request signal by the processor and outputs the time-delay reset triggering signal; the watchdog module makes the timer of watchdog module zero cleared and reset according to the received reset triggering signal and outputs the reset signal to the processor and then the processor does reset after receiving the reset signal. Before the processor is reset we can adopt the emergency measures in order to ensure the system to start again successfully thus enhance the system's stability and easy to analyze the failure cause.