：In order to further improve the truck dispatching theory of open pit mine, an open pit mine truck dispatching equilibrium distribution model based on traffic flow planning was put forward. The distribution model is based on the principle of Wardrop, and the distribution of the road resistance is used as the basis of the distribution. Verified by the case , the road traffic flow of the model in the truck dispatching process is more optimized as the research object than the result of traffic planning , and achieves the purpose of further optimization of truck dispatching process.