The invention discloses a PGIS-based integrated command and dispatching system and method, and belongs to the technical field of command and dispatching systems. The system comprises a task managementmodule, an early warning instruction module, a video conference module, a PGIS access module, a vehicular soldier positioning module, an information processing module, a video monitoring module, a converged communication module, a police report module and a data service module. By adoption of the PGIS-based integrated command and dispatching system and method disclosed by the invention, in cooperation with the existing PGIS platform, the police APP as well as a variety of video monitoring platforms and voice communication means, the integrated command and dispatching system using the PGIS platform as foundation, using converged communication, vehicular soldier positioning and police APP as means and effectively integrating and accessing a video conference platform, a video monitoring platform, a public security big data platform and a service platform, so as to realize the integration and flatness of command and dispatching and effectively improve the cooperative combat speed and thecommand and dispatching efficiency, and thus is an important improvement to the existing technology.