The utility model discloses an automatic pressure stabilizing device of a
hydrogen circulation compressor, which comprises a support plate fixedly connected to the rear side of an automatic pressure stabilizer, the top of the support plate is fixedly connected with a
trepanning positioning plate, the rear side of the
trepanning positioning plate is provided with a round hole, the top of the
trepanning positioning plate is communicated with a
threaded pipe, and the
threaded pipe is connected with the support plate. According to the utility model, the round head is screwed to drive the threaded nail to rotate, and under the action of the
threaded pipe, the threaded nail pushes the downward pressing limiting piece to slide downwards and press a connecting line downwards, so that the connecting line is connected with the threaded
pipe, and the threaded
pipe is screwed to drive the threaded nail to rotate. The connecting line can be supported through the cooperation of the push supporting piece and the spring, so that the connecting line and the wiring end of the automatic
voltage stabilizer can be reinforced, and the purpose that the connecting line and the automatic
voltage stabilizer are prevented from falling off due to shaking of the
hydrogen circulating compressor is avoided.