Abstract: The construction of Peace China needs the support of Gongan culture. But for a long time, Gongan culture has been simplified to the spiritual culture formed around the public security organs and police. This paper deconstructs Gongan culture into two related categories of the public safety culture and the police subculture based on the broad connotation of culture. The public safety culture has both the negative and the positive. The police subculture has the functions of marking, shaping, cohesive and demonstrating. The construction of Gongan culture can be achieved from the following two perspectives. First, we should cultivate public safety culture from content, subject and means to realize active participation of all citizens. Second, we should enhance order productivity of the police subculture through system, implements and behaviors as a guide. The two categories of Gongan culture are indispensable. They promote the realization of Peace China together.