This paper discusses the advantages of IPv6 technology compared with IPv4, such as address capacity, automatic address allocation, mobile connection characteristics, security and confidentiality, quality of service, and multicast transmission. The key summary summarizes the application of IPv6 technology in the four industries of power, finance, home, and education. Since there is almost no application of IPv6 technology in the public security industry in the previous literature, the author proposes the application innovation of IPv6 technology in the public security industry according to his own industry. IPv6 technology can be applied to the work communication, information exchange, case investigation, and social security management of public security departments, which helps to improve the level of public security work, the quality of the people’s police, and the efficiency of public security affairs, thereby improving the safety and satisfaction of the general public. Spend. It has a certain reference significance to make a great contribution to reducing the crime rate, creating a harmonious social environment, and truly realizing the integration of police and civilians.