An electronic device is disclosed. The electronic device comprises an antenna module, a direction detecting module and a signal processing module. The antenna module is provided for communicating with a wireless communication device. The direction detecting module is provided for detecting strength of N wireless signals that the antenna module received from a first offset angle to N-th offset angle with respect to the wireless communication device to determine a directivity of the wireless communication device, in which N is a positive integer larger than 1. The signal processing module is provided for comparing the offset angles corresponding to the strength of the N wireless signals at the directivity of the wireless communication device with a look-up table for obtaining an angle of the wireless communication device with respect to the electronic device.