Marine hydrogen cylinder fixing device

The invention discloses a marine hydrogen cylinder fixing device which comprises a gas cylinder storage bin, a gas cylinder fixing frame used for fixing a hydrogen cylinder, a mounting support used for fixing the gas cylinder fixing frame and a damping assembly are arranged in the gas cylinder storage bin, the mounting support is fixedly connected with a ship body, and the damping assembly is fixedly connected with the mounting support. The gas cylinder fixing frame is connected with the mounting support through the damping assembly, the hydrogen cylinder is fixed to the ship body through the mounting support, the damping assembly and the gas cylinder fixing frame, and meanwhile the influence of ship body shaking on the hydrogen cylinder can be greatly reduced through the damping assembly. Explosion and combustion caused by gas leakage due to the fact that the hydrogen cylinder is vibrated or impacted by the outside are avoided, major safety accidents are avoided, and the effects of collision prevention and w