Abstract: Die wear is the main failure form of die in the forging process, so how to reduce the die wear and further improve the service life of the die is the key problem in the die forging process. A process parameter optimization method was presented in this paper based on die wear in the die forging process, which belongs to the field of the die forging process. It is a process parameter optimization method that combines the finite element simulation test and the orthogonal test design in the forging process. Taking the hot die forging process as an example, based on the Archard wear model, a modified model for the wear analysis of hot die forging dies was derived, and the finite element simulation analysis of the die wear process based on Deform software was carried out in the hot die forging. The relationship between the wear depth of die working surface and the process parameters of die forging was studied in the process of hot die forging. The orthogonal experimental design was used to combine different process parameters, and the optimum process parameters suitable for hot die forging were obtained by less simulation experiments. Using the method of extreme difference analysis to process the experimental data, the process parameters that have the greatest impact on the die wear were derived, and a process parameter optimization method based on the orthogonal test design was provided for the die wear problem in the hot die forging process, and the optimal process parameters that make the die wear loss minimum in the forging process were obtained.