A smart home wireless control system includes a mobile control terminal, a plurality of remote-controlled devices and a signal access point (AP), wherein the mobile control terminal and the remote-controlled devices exchange data through the AP, each remote-controlled device includes an access controller and a controlled appliance connected to the access controller, the inside of the access controller is provided with a wireless signal station and a counter, the mobile control terminal detects the signal intensities of the wireless signal stations of each remote-controlled device, and the mobile control terminal conducts smart control on the remote-controlled devices according to the changes of the received signal intensities of the remote-controlled devices.