Abstract: At present, unreasonable distribution of gas stations exists in many cities which not only threatens the safety of these cities, but also gives rise to environmental pollution from the light oil due to a higher allocation density. By earring out network planning according to different districts and graded gas stations or based on automobile amounts and regional distances, the pollution from the light oil can be controlled effectively and the social benefits can be gained. The optimizing plan for light oil distribution system of gas station is developed generally by mathematic linear programming method to solve mathematic model of the system set up. The establishment and application of mathematic model of light oil distribution system are analyzed. The figured method, by which the optimal plan of distributing light oil can be easily obtained, is introduced with examples. Optimizing the light oil distribution system of urban gas stations can reduce distribution load so as to obtain better economical benefits.