Serial port server and implementation method of serial port server

The invention provides a serial port server and an implementation method of the serial port server, the serial port server comprises a main control unit and a plurality of serial port modules, the main control unit is in communication connection with each serial port module through a USB interface, each serial port module is provided with a plurality of serial ports, and each serial port module is in data communication with external serial port equipment through a serial port of the serial port module. According to the invention, a multi-serial-port module scheme is adopted, serial ports are distributed on a plurality of independent serial port modules, and the main control unit communicates with other serial port modules responsible for serial port services through a USB interface; through the measures, serial port interruption is undertaken by a plurality of independent serial port modules, and the main control unit is responsible for network interruption and a small amount of USB interruption, so that the problem that a single main control unit cannot realize a serial port server with a plurality of serial ports due to excessive network interruption and serial port interruption is solved, and the realization difficulty and cost of the multi-port serial port server are reduced.