The invention discloses a high-altitude operation device for an energy storage power station, relating to the field of construction equipment of the energy storage power station. The technical scheme is that the device comprises a track and an operating vehicle that can be operated along the track. The high-altitude operation device is characterized in that the track is circularly arranged along the upper edge of a generator well, the operating vehicle is provided with a lifting displacement mechanism with a manual clutch control mode, and the lifting displacement mechanism is connected with the track. The high-altitude operation device disclosed by the invention has the following beneficial effects: the device is convenient to use and reasonable in design, the process of installing and using an existing generator set without destroying an original structure can be facilitated by installing the track on the original basis in combination with a rack well of a generator, and the whole device does not need a separate power supply, is fully manually operated, and can be applied to a no-power state during the maintenance of the generator set; workers can stand in an operating basket to perform corresponding adjustment for the overall height and horizontal position of the device through hand cranking, and the whole use process is safe and simple; and moreover, the operation of lifting and horizontal movement can be switched through a simple clutch mechanism, and thus the device is convenient and easy to use.