As the real world，the internet is the human activity space，the behavior of people in internet must be guided and restrained by the norms like in the real world.The network norm research is a new field which studies the norms of human behavior in the network，it involves in all the norms of people acting in internet，such as network ethic，network law，network technology norm，network etiquette and so on.Since the internet appears，the network norm research has achieved rich results and become one important part of the internet study.So it is of great significance for the network norm research to review its development process in the past years，summarize its shortage and expect its development future.