The realization of high-quality construction starts from the elaborate digital optimization design. During the whole life cycle of parametric design, the construction completion degree of the building elevation gradually becomes the core key issue. Taking a commercial complex as an example, the method research of textural elevation optimization design was carried out. The vertical optimization method of "grid geometrical subdivision of grille in 3D surface space projected by pixel grid 2D normal projection" was used to carry out industrial optimization of the parametric texture facade skin system, which completed the seamless connection between the architectural scheme and industrial digital construction design, and realized the integration of design and construction. The digital construction scheme of the optimal curtain wall structure system was studied and obtained through the study, including the parametric optimization design process, the method and its process logic flow chart as well as the visual script logic diagram with source code, so as to enhance the adaptability of the textured skin curtain wall in practical industrial construction and substantially reduce the overall construction period and project cost with rationalization.