The invention discloses a hydraulic servomotor performance test device special for a turbine set. The hydraulic servomotor performance test device special for the turbine set comprises a first quick-closing electromagnetic valve, a second quick-closing electromagnetic valve, a first cartridge valve, a second cartridge valve, a servo valve, a filter, an oil pump, an oil tank, a valve, a spring, an oil cylinder, an oil discharging opening, a buffer oil opening, a displacement sensor, an industrial personal computer and a servo card. The hydraulic servomotor performance test device is used for testing the parameters of the quick closing time, the switching on and switching off performance and the magnitude of spring force of the hydraulic servomotor and the magnitude of the friction force between a piston of the hydraulic servomotor and the oil cylinder, analyzing and calculating the parameters and then storing the parameters in the device in the form of report forms, and storage and access of the parameters are convenient. The hydraulic servomotor performance test device has complete test functions on the hydraulic servomotor, the tested data are accurate, and the practicability is high.