In addressing the low efficiency and error-prone issues in the overall layout parameter phase of existing tunnel boring machine designs, a method for determining overall layout parameters based on the technical specifications of tunnel boring machines is proposed. The EBZ200 model mining cantilever tunnel boring machine is selected as the subject, and its functional modules are divided to analyze the impact of each module's layout parameters on the overall performance indices of the tunnel boring machine. The tunnel boring machine model is rigged and skinned using Cinema 4D, performance back-calculation parameters were computed using MATLAB, and a corresponding database is built using MySQL. Finally, a system was developed using the Unity3D engine and C# scripting. This system can retrieve suitable combinations of cutter parameters for the size of the tunnel face, enabling visual adjustments of the layout parameters of the tunnel boring machine. Real-time displays of the effects of layout parameter changes on performance indices effectively enhance the design efficiency of the tunnel boring machine.