In order to solve the problem of a large amount of pond sediment deposition, which caused water deterioration and fish disease outbreak, a mechanized regulating system for pond sediment during pond culture was designed. Solar energy was used to provide power to the systems. The sediment was lifted to upper water and reused again. The routing of the mechanized regulating system was regular and controllable at water surface. Based on the predetermination of capacity of water flow, working radius, light intensity, still water speed and other parameters, the design of mechanized regulating system was accomplished. The overall structure and working principle of four core parts were described, which was composed of lifting device for sediment, power plant, traveling mechanism and control system . The mechanized regulating system’s working coverage, water flow, empty noise, speed of traveling mechanism, traveling speed of lifting device for sediment, distance of remote control by wireless were tested，and every indicator can meet design requirements. The results showed that the mechanized regulating system for pond sediment was safe and reliable, which can release the nutrients of sediment and reuse the sediment.