A system for detecting wireless base stations and a method thereof are provided. The system includes a detection module, a count module, a storage module, and a switch module. The method includes sending a detection request to a channel, determining whether a wireless base station corresponding to the channel physically exits, and whether the channel is detected, based on a detection response returned by the channel; returning a detection response; calculating the sum of the detection request and the detection response so as to create a count result to be stored in the storage module; and switching directly from the wireless base station currently in use and the corresponding channel to the next undetected channel and a corresponding wireless base station, based on the count result.