The utility model provides a coast ultra supercritical thermal power plant uses hydraulic control butterfly valve, including water tank, circulating pump, radiator fan, heat pipe, water -cooling piece, stock solution room, micropump, ring pipe and battery piece, the water tank is installed at the control box up end, the circulating pump sets up at water tank right -hand member face, radiator fan installs at inside of controlling box right -hand member face, the heat pipe sets up at inside of controlling box, the water -cooling piece sets up terminal surface under the heat pipe, and the unsatisfactory problem of original coast ultra supercritical thermal power plant uses hydraulic control butterfly valve cooling effect has been solved in this design, install at the base up end stock solution room, the micropump is installed at stock solution room up end, the ring pipe sets up at the casing surface, the battery piece sets up at stock solution room right -hand member face, and the problemthat original coast ultra supercritical thermal power plant uses hydraulic control butterfly valve does not have rust -resistant function has been solved in this design, the utility model discloses rational in infrastructure, functional strong, stability is good, and the reliability is high.