In order to explore the technical route of applying large model technology in the process of ship production design, and to verify the feasibility of the application of large model in assisting rapid modeling, so as to help improve the efficiency of production design. The parameters required for modeling are extracted from the input natural language text by means of large model prompt engineering, and generic modeling instructions are output in a standard format. Then, through the secondary development of AVEVA Marine (AM) platform, the generic modeling commands are converted into operations such as creation, modification and deletion of 3D models. In the secondary development of AM, rapid modeling of standard components is achieved using a model library approach. Through the method of natural language modeling, various operations on 3D models can be completed by using text and voice input natural language, achieving easy and common operations in production design modeling.