As a large-scale project，lock construction is more complicated compared with other water transport projects，and problems easily occur，the construction technology requirements are higher，so construction supervision is very important. Ship lock construction supervision has important significance to ensure the quality，progress and safety of the project，which can effectively eliminate all aspects of hidden dangers for the construction，and ensure the smooth and efficient implementation of the ship lock construction project. This paper summarizes the experience from lock construction supervision practice，and puts forward construction supervision scheme from the control of quality，progress，safety，etc.，which may serve as reference for similar projects.