An electronic device includes a camera and a position detection component arranged in an accommodating cavity. The position detection component includes a circuit board, a bracket, a first magnet, and a Hall sensor. The camera of the electronic device is arranged on the bracket, and the camera can stretch out of or retract into the accommodating cavity constituted by a housing. The Hall sensor includes a first working surface and a second working surface which respectively extend in different directions. The Hall sensor senses a magnetic field of the first magnet through the first working surface and the second working surface and generates induction signals. The induction signals are used to determine a stretching-out position and a retracting position of the camera.