The application range of electric knife gate valve is very wide, from coal preparation, gangue and slag discharge in mines and power plants, to urban sewage treatment; from slurry transportation in cement and paper mills to professional pipelines such as food, sanitation and medicine. The ultra-thin design electric knife gate valve completely solves ordinary gate valves, flat gate valves, ball valves, globe valves, regulating valves, butterfly valves, etc. with its advantages of small size, light weight, small flow resistance, no slag accumulation, easy installation and easy disassembly. The valve has large flow resistance, takes up space, is easy to accumulate slag, and is difficult to install and maintain. As a result, a large number of general shut-off valves and regulating valves have been replaced by electric knife gate valves.