In view of the problems existing in the current solutions of the stacker-reclaimer unmanned control system，this paper proposes a stacker-relcaimer unmanned control system based on 3D active laser scanning technology. The 3D active laser scanning technology can be independent of the movement of the stacker-reclaimer and actively perceive the surrounding operation environment. The three-dimensional material pile model is generated and updated based on the data collected by the laser scanning system before and during operation. The control decision algorithm system generates the related operation strategy based on the shape analysis of the three-dimensional model，and completes the automatic unmanned control of the stacker-reclaimer. Meanwhile，a human-machine friendly visual interactive system is constructed，which has been successfully applied to the coal stockyard of a large coal port，and achieved remarkable technological and economic benefits through effectively reducing the labor costs，improving the operators’ working environment，improving the equipment operation safety and reliability，improving the working efficiency and utilization rate of the stockyard.