The invention discloses a wear-resisting high-temperature-resistant integrated type power station instrument ball valve which comprises a handle and a valve body, wherein the handle is connected witha locking nut, the locking nut is connected with a pressure pad, the pressure pad is connected with a lining, the lining is connected with a press cover, the press cover is connected with a lining disk through a lining ring, filler and a connection rod ball is arranged between the press cover and the lining disk, the lining disk is connected with the valve body, and a protection layer is further arranged on the valve body; the protection layer is prepared from the following ingredients in mass fraction: black silicon carbide, fine grain aluminum oxide, organosilicone modified epoxy resin, methylphenyl silicone resin, polyolefin elastomer, glass fiber, modified vermiculite powder, a flame retardant, a synergistic flame retardant, a dispersing agent, filler, a thickening agent, an antioxidant and rare earth elements. The instrument valve disclosed by the invention has the advantages of simple structure, good wear resistance and high temperature resistance, prolonged service life and reduced cost.