The remote control equipment for salvage on the sea is a life-saving tool, meaning to rescue the drowning patients by approaching quickly through a remote controlling the electric buoy.According to the practical demands of salvage on the sea, the lab provide the main technical targets for effectively salvage in the complex sea conditions through series of research and study. Many technologies are employed in the actual development process, such as buoyancy、materials、structures、craft、wireless communication、controlled by SCM etc. which resolved effectively the problems due to the rough wind and wives, such as the degradation of the distance of remote control and the accuracy、roll-over、difficult to move in a straight line on the sea、oozing with water、weak stability of system etc. So it realized the demands of the l technical targets well.The main results of the research and study involve:1. We have developed the remote control equipment for salvage on the sea successfully. And 25 equipments have been tested in the troops.2. The catamaran frame structure of the ship we developed has strong expertise against the wind and wives. It’s the first time to be designed at home and abroad. 3. The gyroscopic counter weight can keep the centre of gravity of the ship always downward whenever.4. A series of research and experiments on the sea can provide so much data to the logistics study of the salvage.