In order to improve the performance of the product, a static simulation of the equipment cabin base plate assembly was carried out. Taking the middle plate thickness and profile wall thickness of the base plate assembly as design variables, the 3-dimensional model of the equipment base plate assembly was constructed, and the structure of the base plate assembly was parametrically designed using 3-dimensional design software. Based on the principle of lightweight, finite element analysis software was used to optimize the structure of the base plate assembly. Post-process the optimization results, the parameters and weights of the optimization target were set, and the optimal design point was determined. The simulation results show that the weight of the optimized base plate assembly was reduced by 40.94% compared with the original plan.