The intelligent construction of public security big data can change the way public security organs discover, analyze and solve problems, effectively improve the early warning and prediction and prevention ability of public security organs, can promote the upgrading of police technology and police equipment, inject new kinetic energy into the police work, comprehensively enhance the core combat effectiveness of public security organs, and can promote the digitization, standardization, and intellectualization of management services, It can promote the digitalization, standardization and intelligence of management services, improve the level of service refinement, enhance the people's sense of access and happiness, and comprehensively improve the quality and effectiveness of police work, greatly reducing police costs and police work intensity.