Abstract: The application of intelligent truck dispatch system is an effective method to reduce the cost of production in surface mine. Based on the example of Bai-yun-e-bo iron ore mine, this paper illustrates the calibration method of the truck intelligent dispatch system. It also makes a simulative & quantitative estimation of the application effect of the intelligent dispatch system based on the method of "calibration per shift-simulative comparison by computer", and provides technical reference for the surfaces mine that will adopt the truck intelligent dispatch system.