Abstract: In making intelligent transformation of the truck loading system traditionally used at a coal mine, lots of difficulties in transformation of loading process, selection of equipment and cost control are generally met with. The intelligent transformation of the traditional bunker system for loadout at Nahu7^# Mine is taken as object for case study. Based on analysis of the specific conditions of the system before transformation, a process optimization - intelligent transformation integrated strategy is proposed. For process optimization, a new loaded coal metering method is used, which integrates three measuring technologies of radar modeling, weighing by weighbridge and constant-tonnage feeder, and is capable of carrying out interactive communication. With respect of intelligent transformation, four subsystems for respectively dealing with queue calling-up, unattended weighing of loaded coal, automatic truck loading and centralized control operations. Practice shows that the efficiency for loading a truck going through the renovated weighbridge has seen a rise by about 70%; the phenomena of underloading, overloading and nonuniformly distributed loading are practically eliminated; the goals of turning the mine′s loading system to an intelligent and unattended one has achieved; and the cost-effective transformation work has brought about remarked economic result and improved loading efficiency. The successful execution of the project may serve as a reference for making similar renovation work by other mines.