The invention relates to the technical field of lifesaving equipment, in particular to an electromagnetic gun quick rescue device. The device mainly comprises an electromagnetic gun tube, an electromagnetic gun wire, a piston-shaped electromagnetic gun body and a gun tube elevation angle adjusting device, and further comprises a rescue ring, a middle connection cylinder, a rescue rope, a rhombic telescopic frame, a reel and a motor. At the beginning, the rhombic telescopic frame is in a compressed state, and the piston-shaped electromagnetic gun body is located at the starting position. Pulse currents are provided for the electromagnetic gun wire, the piston-shaped electromagnetic gun body accelerates, and the rescue ring is shot out. When the rescue ring rushes out for a target distance, the motor rotates reversely, the rescue rope is pulled suddenly, and the rescue ring is buckled forwards in a rear inclined state and is buckled on a person to be rescued. The motor continues to rotate reversely, the whole system and the person to be rescued are pulled back together, and rescue is finished. The device has the advantages that the rescue ring can be shot out suddenly and arranged on the person to be rescued quickly in a sleeving mode, response is quick, and rescue speed is high.