Making best use of communication resources of Dopple r radar, integ rated communication and Internet technology, without increasing communication li nes and influencing radar data communication, the transmission system of broadba nd network for comprehensive sounding service was established by setting up the LAN system. It was done by changing the connection mode of cables and the comput er system of Doppler radar. Great improvement is made in the communication envir onment. The transmission of data is steady, convenient and fast.