Abstract: A wireless signal transmission system and method establishes an inter-transmission and exchange of files between a computer peripheral and a host system through a wireless signal transmission module. The system at least has an integrated Bluetooth module and a USB chip, which can intelligently identify and convert the type of wireless data format into wired interface data format. Through the wired interface port in connection with the host system, the type of the computer peripheral is reported to the host system. Accordingly, various drivers for different wireless peripherals need not be installed repeatedly, so as to increase the convenience and usefulness of the operation.