A method for controlling a wireless communication circuit is provided, wherein the wireless communication circuit is positioned in a first electronic device, and the method includes the steps of: obtaining parameters of each of a plurality of channels of the wireless communication circuit, and storing the parameters of each channel into a first storage device of the wireless communication circuit, wherein the plurality of channels are capable of being used for communications between the first electronic device and a second electronic device; using at least one specific channel of the plurality of channels to communicate with the second electronic device; and when the wireless communication circuit enters a power saving mode, retaining the parameters of the at least one specific channel, and removing at least a portion of the parameters of the other channels from the first storage device.