The invention relates to a communication system and an implementation method thereof, and discloses a system compatible with multiple wireless transmission modules. The system comprises a terminal software application processor, a wireless module, a UIM card interface switch and a UIM card, wherein the UIM card interface switch is connected with the wireless module and the UIM card, a bottom layer of the terminal software application processor is provided with a general multi-route switch adapter, and 1-4 groups of route switches for monitoring USB data of a wireless module are arranged under the general multi-route switch adapter. Simultaneously, the invention discloses the implementation method of the system compatible with multiple wireless transmission modules. By adopting the invention, a mode that a single wireless data transmission controller controls a single base band module is changed, and the problems of network, data transmission, bandwidth and reducing the dependence of the bottom layer wireless module upon the processor are effectively solved.