The invention discloses an electricity saving control method for a mobile terminal. The mobile terminal comprises a display screen and a central processing unit. The electricity saving control method comprises the following steps: judging whether the mobile terminal is standing; judging whether the display screen is updated when the mobile terminal is standing; judging whether the trigger operation exists when the display screen is not updated; judging whether an ambient light changing value is less than a first preset value when the trigger operation does not exist; judging the using rate of the central processing unit is less than a second preset value when the ambient light changing value is less than the first preset value; when the using rate of the central processing unit is less than the second preset value, enabling the display screen to be in a half-close sate and completely closing the display screen after the first preset time, and if the using rate of the central processing unit is not less than the second preset value, enabling the display screen to be in the half-close sate and completely closing the display screen after the second preset time, wherein the second preset time is greater than the first preset time. By the electricity saving control method disclosed by the invention, the electricity saving mechanism is optimized, and further the aging of hardware of the mobile terminal can be slowed down in an energy-saving mode.