Soft seal gate valve, overcome the general gate valve sealing poor, elastic fatigue, rubber aging and rust and other defects, soft seal gate valve using elastic valve plate to produce a trace of elastic deformation of the complementary taste to achieve good sealing effect, the valve has a light switch, reliable sealing, good elastic memory and long service life and other significant advantages. Can be widely used in water, sewage, construction, petroleum, chemical, food, medicine, light textile, electric power, ships, metallurgy, energy systems and other fluid pipelines as a regulating and intercepting device.