At present, there are not many automated means for guiding the design of ship cables, and a large amount of statistical work is still handled manually. Therefore, there is a problem of inefficient design and low accuracy. Therefore, this study starts from engineering practice and takes full advantage of the electrical design module of CATIA V6 to transform the transform the traditional ship electrical design flow, and initially explores and proposes a method of automatic generation of ship cable guidance. Through the simulation of a real ship case, this method The application shows the feasibility of this method. Continuous exploration and continuous improvement of this method will not only improve the efficiency of naval cable-oriented design in the future, but also improve the design accuracy, which is a favorable technical support for future refinement of electrical design of ships.