In order to improve the efficiency of AVEVA Marine (AM) software living cabin modeling, a secondary development method for parametric living cabin modeling was proposed. Using Csharp (C#) software for secondary development of AM, by defining different styles of parametric cabins and furniture, the purpose of rapid modeling of living cabins is realized, the modeling work and operation process of living cabins are simplified, and the modeling efficiency of living cabins is improved. It is convenient for relevant designers to use. The efficiency of the secondary development is verified by the actual measurement of the developed parametric living cabin modeling function.