The electric sanitary butterfly valve adopts standard electronic polishing, and the smooth surface ensures cleanness, no medium accumulation area, and no potential pollution. The quick disassembly and assembly of the valve makes the valve opening and maintenance quick and easy, and shortens the process downtime. It is widely used in process control occasions such as food, pharmaceuticals, cosmetics, clean steam, wine, beverages, and biochemical industries. It has the advantages of compact structure, convenient disassembly and assembly.