It is difficult to improve the labor efficiency by means of the effective technology equipment during the laying of ship cable, and the serious safety risks exist in the high strength operation of low space. The ship cable automatic laying system is taken as the analysis object, the system composition and system interface are introduced, the Proportion Integration Differentiation (PID) algorithm is used to calculate the system travel, the data transmission is completed through the PROFINET bus, and the system performance requirements are realized with Human Machine Interface (HMI). The actual application on the wind power installation platform shows that the system can solve the problems of high labor cost and high safety risk in the shipbuilding industry.