According to the characteristics in emergent logistic vehicle dispatch such as too many quantity and types of vehicles and bigger obstruction in the travelling roads, as a result, in order to improve vehicle management efficiency, transportation safety and the real-time and accurate logistic transportation, a management system based on WebGIS is set up by using ArcGIS Server and Flex, this system implements the functions such as information management for drivers and vehicles, the optimal travelling route arrangement, route-monitoring of vehicles and so on and provides a higher interactive platform for emergent logistic vehicle dispatch. 