解决城市治安问题、创建良好社会秩序是居民最迫切的需要 ,是中国城市社区建设的动因和主要内容 ,也是检验社区自治和政府管理成效的主要标准。目前居住型社区（即以居住小区和家属区为主所构成的社区）普遍采用“一区一警”制以及警察与社区合作的防控机制是一项成功的探索。 Solving the problem of law and order in the city and creating a good social order are the most urgent needs of residents. They are the motivation and main content of the construction of urban communities in China. They are also the major criteria for testing the effectiveness of community autonomy and government administration. At present, it is a successful exploration that the commonly used “one district, one police” system and the prevention and control mechanism of police and community cooperation are the common types of living community (that is, the community consisting mainly of residential area and family area).