Abstract: Aero-engine and gas turbine disk tenon are characterized by complex shapes and difficult machining, and are usually machined by special sets of tenon broaches. The traditional tenon broach design cycle is long, and the tool needs to be redesigned to calculate the cutting amount for different working steps, which is inefficient. In order to address this problem, the design phase of turbine disk tenon broach was taken as the object of research, analyzing the relationship between broach cutting parameters and broach width under multiple constraints, and setting up a rapid parameter calculation platform under the environment of Matlab AppDesigner software. At the same time, parametric modeling of a model turbine disk tenon profile was conducted, according to the tenon broach design process and tenon machining mode allocation to establish a complete set of tenon broach general template. The expression function of UG/NX12.0 was used in series with the tool design parameters and constraints, combined with the NX Open C/C++ API and the VS2019 compilation environment, to achieve a complete set of turbine disk tenon broach rapid design. The design efficiency is improved.