Each vessel is propelled by two engines and two propellers and could reach the design speed of 18 knots. The vessel is a combination of the successful experience of Aulong Shipbuilding wind power operational ship, and carries on the optimization according to the characteristics of the guangdong area, reduces the hull in the wave motion response, good seaworthiness, seakeeping, quickness, maneuverability and safety, can significantly improve the efficiency of offshore wind power operations, to further promote the specialization level of domestic wind power operational ship industry, to provide a stronger security guarantee for the operation and maintenance of offshore wind power.