A method for switching off communication screen to avoid false triggering based on a mobile terminal and system employing the same are described. The method comprises: controlling the mobile terminal to switch off the touch-screen and enter a communication gesture mode when the mobile terminal is detected to be in the communication mode and there is no touch operation in the mobile terminal during a predetermined interval; and acquiring a gesture operation instruction of a user and controlling the mobile terminal to perform a plurality of corresponding operations based on a preconfigured gesture operation instruction. The present invention switches off the communication screen to avoid false triggering.