The ship is designed by the 708 Research Institute of China Shipbuilding Corporation. It is a self-propelled full-revolving lifting ship integrating transportation, salvage, lifting, hoisting and wind power installation, etc. The maximum lifting capacity is 6000 tons, and it has the ability to salvage large tonnage underwater objects as a whole and quickly clear obstacles. It is of great significance for Yantai Salvage Bureau to perform the public welfare duties of national emergency rescue and salvage; At the same time, it can meet the installation and hoisting requirements of the vast majority of modules, jackets, monopiles, step-up stations, etc. in the oil and gas and offshore wind power industry, and has the functions of platform operation support, submersible operation support, etc. With advanced design concept and strong comprehensive performance, the ship is designed according to the severe sea conditions of deep open sea and long-period surge, with excellent wave resistance and wave pressure capacity. Upon completion, the comprehensive operation and emergency response capacity of China's deep-sea will be greatly improved.