A wireless remote control system is provided. This system includes a remote controller, plural detectors, and a decision module. The detectors are used for detecting the frequency a wireless signal emitted by the remote controller and respectively generate a detecting result. Based on at least one frequency difference between the detecting results, the decision module determines how the remote controller is moving and thereby generates a control signal. Because the decision module needs no knowledge of the frequency of the emitted wireless signal, the wireless remote controller has the advantages of small size, low cost, and low power consumption.