Based on a European offshore wind power project， addressing the issues of cumbersome operation， low efficiency， and high error rate in traditional jacket design methods， this paper delves into the design application value of the core building information modeling （BIM） software Tekla， aiming to enhance design quality and efficiency and provide technical support for the efficient implementation of the project. The paper first elaborates on the application process and technical advantages of Tekla’s 3D solid modeling technology in this project. Then， taking the main structure modeling of the jacket as an example， it constructs wireframe models， creates material list templates， outputs material lists， and compares steel weight data from different sources， providing reliable data for procurement，prefabrication， and cost control. Given the rich information required in the drawings of offshore wind power jacket foundations and the low efficiency of using CAD single-part drawing software to create pipe fabrication drawings， the research team successfully developed a structural joint geometry automation tool plugin by leveraging Tekla’s secondary development capabilities， thereby solving the drawing generation challenges. Finally， through comparative verification， it is demonstrated that Tekla’s 3D models and extended tools can significantly improve design quality and efficiency， achieve cost reduction and efficiency enhancement， and provide technical and practical foundations for the design of offshore wind power jacket engineering.