Currently， the operation of bucket turbines in coal yards for thermal power plants relies solely on the manual operation of a driver. This process is continuous， labor-intensive， inefficient， and poses risks such as climbing and dust hazards. This paper presents an example of the automatic transformation of a portal bucket turbine in a coal-fired power plant， detailing the main components of the automatic control system， the principle of automatic stacking and reclaiming， and the transformation scheme. The research and transformation result in improved efficiency for coal stacking and retrieval， ultimately achieving an unattended portal bucket turbine for coal yards.