Presently, the highway tunnel finite element(FE) analysis requires high demand on FE software using ability and professional mechanics theory of tunnel engineers, the modeling process is complex, and the modeling time is long. In this study, the characteristics of highway tunnel mechanical model and its design and construction are analyzed to establish a data structure for numerical modeling of highway tunnel. Then a fast parametric modeling platform of highway tunnel is constructed using Python language as secondary development and UI design tool based on graphics modules including PyQt5 and Matplotlib. Based on the ABAQUS core computing platform with powerful secondary development ability, an automatic modeling and analyzing platform integrates preprocessing, postprocessing, calculation, and analysis of highway tunnel is developed. Finally, the integrity, practicability, and validity of the platform are verified through a highway tunnel with threecentered circle crosssection. The results show that the proposed platform greatly simplifies the process of numerical simulation in the analysis of highway tunnel, reducing the modeling difficulty and user cost for tunnel engineers.