An electronic device and a control method applied to the electronic device are disclosed. The control method includes the following steps: receiving a feedback signal and determining a signal strength value of the feedback signal; comparing the signal strength value with a threshold value; obtaining a gravity acceleration value from a gravity sensor and comparing the gravity acceleration value with a predetermined value when the signal strength value is greater than the threshold value; comparing a variation value of the gravity acceleration value with a variation threshold value when the gravity acceleration value is greater than the predetermined value; and controlling a screen to operate in a first mode when the variation value is greater than the variation threshold value.