The utility model discloses a high water head large capacity vibration of hydrogenerator set throw protection device, including generating set, generating set includes lower bearing bracket and last frame, operates the computer to set up and puts on the lower bearing bracket, the lower part of lower bearing bracket is equipped with the top cap drain pipe, is equipped with water wheels between lower bearing bracket and the last frame, and water wheels are connected with lower guide bearing, lower guide bearing's lower extreme setting is in the top cap drain pipe, be equipped with frame vertical vibration sensor and last frame horizontal vibration sensor on going up the frame, be equipped with lower bearing bracket vertical vibration sensor and lower bearing bracket horizontal vibration sensor on the lower bearing bracket, the last lower guide bearing throw sensor that is equipped with of lower guide bearing is equipped with top cap drain pipe vertical vibration sensor on the top cap drain pipe. The utility model discloses conveniently realize high accuracy, the vibration monitoring of high reliability ground.