The resilient metal sealed butterfly valve is a key national new product. The high-performance resilient metal sealed butterfly valve uses a double-eccentricity and a special inclined conical elliptical sealing structure. This solves the problem of sliding contact friction on the seal face in the instant during which traditional eccentric butterfly valves open and close from 0°～10°, achieving the effect of the butterfly plate's separating from the seal face in the instant it opens and achieving sealing as soon as it contacts when closing, reaching the goal of prolonging service life and having the best sealing performance.