The invention relates to the field of aquatic rescuing, in particular to an aquatic rescuing device. The aquatic rescuing device comprises a main body, a propulsion device, a direction control device, a sensor, an attitude regulating device, an infrared camera, a wireless communication device, N wireless relay devices, a life saving device, a control system and a remote controller, wherein the attitude regulating device is used for accurately adjusting the attitude of the main body and assisting other devices to complete the accurate steering, the accurate lifting and the accurate hanging of the main body; the wireless relay devices are used for performing wireless relay when the distance is far or the communication environment is poor; the life saving device is used for fixing a rescuing target; the attitude regulating device comprises four attitude regulating electric motors and four attitude regulating propellers; the four attitude regulating electric motors are separately and uniformly mounted on two sides of the main body; and the wireless relay device can be released by the main body. The aquatic rescuing device disclosed by the invention can regulate the movement direction and the attitude accurately and perform hovering, many rescuing manners including cuddling, towing armpits, holding by hands and the like are provided, and the problems that the aquatic rescuing device is low in rescuing efficiency, narrow in application scope and poor in stability are solved.