Abstract: In recent years, issues like urban-rural integration, public security service, and the grid have attracted widespread attention in the world. Compared with the traditional mechanism, the grid system enables high shareability of public security resources, and the collaborative development of public security services has been brought into the research of public security services of urban-rural integration program. Based on the probing of the principles of the grid, the thesis investigates the grid of its aggregation, responsibility, interaction and sharing mechanism of public security services of urban-rural integration, and puts forward the corresponding countermeasures and advises from four aspects of policy, organization, platform and technology, aiming at meeting demands of the public security services of urban-rural integration.