A method and device for lighting a screen of a terminal, and a mobile terminal. The method comprises: obtaining, through a pressure sensitive screen, pressure information of a pressure acting on the pressure sensitive screen, wherein the pressure information comprises a pressure value and an acting time of the pressure acting on the screen; determining whether the pressure information satisfies a predetermined condition, wherein the predetermined condition comprises: a pressure value is greater than or equal to a predetermined pressure value, and an acting time is greater than or equal to a predetermined acting time; and lighting the pressure sensitive screen of the terminal when the pressure information satisfies the predetermined condition.
