Swing stopping system for underwater device laying and recovery

The invention relates to the technical field of ships, and particularly discloses a swing stopping system for underwater device laying and recovery, the swing stopping system comprises a deck platform, a winch mechanism and an A-type portal, the winch mechanism is arranged at one end of the deck platform, the A-type portal is arranged at the other end of the deck platform, and the inclination angle between the A-type portal and the deck platform can be adjusted; a first support is hung on the A-type portal frame, a first guide wheel is arranged on an upper beam on one side, close to the A-type portal frame, of the first support, and a follow-up rope-falling-preventing device is arranged in the middle of the first support. According to the swing stopping system, the underwater device is clamped by the clamping mechanism, and the underwater device is limited by the underwater device buffering and limiting seat, so that the underwater device has a good swing stopping effect; the chuck is designed to be circular