Abstract：Right to privacy, which is well accepted in China, still needs more research, because the problems such asboundary of it and so on have no consensus yet. Although right to privacy has the basis of constitution, it shouldbe a civil right. The attribute of it is concrete personality right rather than general personality right, and shouldbe regulated by personality right law. Right to privacy mainly includes peace of life and private secret. The development of right to privacy should base on these two aspects. Right to personal data distinguishes itself fromright to privacy and should be regulated separably.