In modern ports and wharves, berthing more ro-ro ships and large ships, in order to prevent collisions when ships dock, it is essential to set up some protective devices. The existing protective devices mostly use rubber tires, steel skeleton, spring support, solid rubber materials, etc., which is more practical for traditional docks and ships with small displacement, but for modern ports and docks with many stops on ro-ro ships and large ships, the safety performance is not enough, so it is necessary to design protective devices suitable for ro-ro ships and large ships. Marine ball is now a more versatile device, but the current Marine ball burst resistance strength is weak, impact fatigue resistance is low, easy to puncture and tear, short service life; In addition, because the stability is not high enough, the rubber tire on the surface of the ship will slide when it is hit, making the effect of shock absorption buffering worse.