Abstract: In order to solve the problems of high work intensity, high risk factor and low work efficiency when cleaning water bunkers in coal mines manually, a water bunker cleaning robot replaces manual cleaning of water bunkers, thus reducing the work intensity and risk of bunker cleaning workers. We develop a water bin cleaning robot system, which integrates coal mud excavation, dewatering and transportation, and realizes timely and efficient cleaning of coal mud in underground coal mine water bins. Detailed introduction of the system composition, principle and function. Analyze the cleaning effect of the water bin cleaning robot through the use of case studies. The application results show that the water bin cleaning robot system is suitable for coal mine underground water bin coal sludge cleaning work, which is of great significance to realize the intelligent construction of coal mine.