Abstract: In this paper, according to terminal anonymous system, which is an integrated anonymous communication software based on Tor anonymous system on Linux OS, we put more emphasis on data filter module, which is the kernel of the anonymous system.We find that socks proxy has the advantage of high security and easily controlling.So this technology is selected as data filter module to realize the mutual transformation between Http (S) proxy and socks proxy in this paper.The result shows that the anonymous system has realized the hiding of users' identity information.