The invention relates to an intelligent rescuing device based on an unmanned ship. The intelligent rescuing device based on the unmanned ship comprises a ship body, a propeller, a first driving motor, a radar device, a locating device, a communication device and a controlling processor. The intelligent rescuing device based on the unmanned ship further comprises material cabins, a life-saving cabin, a device cabin, an oxygen generating device and a searchlight. The propeller is arranged at the tail part of the ship body; the radar device, the locating device and the communication device are arranged on the top of the ship body; the two same material cabins are correspondingly arranged at the two sides of the ship body and are internally provided with life-saving materials and fixing devices, and the life-saving materials are connected with the fixing devices through fixing ropes; an electric cabin door is arranged at the bottom of each material cabin; the life-saving cabin is located in the ship body, the top of the life-saving cabin communicates with the top of the ship body through a life-saving channel, and a sealing cabin door is arranged at the top end of the life-saving channel; the oxygen generating device is arranged in the device cabin and communicates with the life-saving cabin through an oxygen pipe; and the searchlight is arranged at the top of the ship body.