The invention relates to a method and an apparatus for controlling a touch screen to trigger induction and an electronic device. The method comprises the steps of determining a current state of a USB interface; determining the intensity of a suspension signal of a suspended object; and when the intensity of the suspension signal reaches a sensitivity threshold consistent with the current state, triggering a preset action corresponding to a proximity sensor. According to the technical scheme of the method and apparatus as well as the electronic device, the proximity sensor has consistent triggering sensitivity in charging and non-charging states, so that the influence of common-mode noises generated by a charger on the proximity sensor is avoided and the stability of triggering the preset action by the proximity sensor is ensured.