An electronic device and method for resuming from hibernation, the electronic device has a light sensing component and a tilt sensing component. When the electronic device is in the hibernation status, external light of electronic device is detected via the light sensing component for attaining light source data, the tilt angle of the electronic device against the horizontal plane is detected via the tilt sensing component for attaining tilt data. Thus, when it is determined that the light source data and the tilt data satisfy a predetermined resuming condition, the electronic device resumes from the hibernation status. With the present invention, when a user is going to operate electronic device, and the user only needs to hold electronic device and the electronic device resumes from the hibernation status and is ready to use without extra trigger actions required.