In terms of the problem that it is impossible to realize the flow-driven design management in ship design at present, the design management method is studied by taking the ship piping penetration piece as the object. The current status of application of ship design management is analyzed, and by controlling the maturity status of the design task objects, the whole flow control of piping penetration piece design is realized, at the same time, the model authority management and collaborative design information push management based on the maturity are realized. By means of secondary development, the management method can be applied to the design of real ships, which can effectively improve the design quality and efficiency.