A processing method for reducing power consumption and a mobile terminal are provided. The method includes: controlling a sensor coprocessor to enter a dormant state, in a case that the mobile terminal is in a screen-off state; receiving a trigger instruction transmitted by a touch screen coprocessor, wherein the trigger instruction is transmitted when data collected by a sensor connected to the touch screen coprocessor meets a predetermined trigger condition; and controlling the mobile terminal to perform a function corresponding to the trigger s action.