Fishery lifesaving device and early warning system

The invention relates to a fishery lifesaving device and an early warning system, and belongs to the technical field of fishery lifesaving, the lifesaving device comprises an overhead mechanism, a raft throwing mechanism, a cable breaking mechanism and a life raft, the overhead mechanism comprises a direct current motor, the direct current motor is connected with a winding drum, and one end of a safety pull rope is fixed to the winding drum; the raft throwing mechanism comprises a throwing frame and a driving device, the throwing frame comprises a first movable rod, the first movable rod is connected with a first connecting rod, the first connecting rod is installed on a second movable rod in a limited mode through a sliding rail and a sliding block, and the second connecting rod is connected with a safety pin. The driving device comprises a stepping motor, the stepping motor is connected with a worm, the worm drives a worm gear, the worm gear drives a transmission shaft to rotate through a second connecting