The multi-functional ramming car was successfully developed. Meirui Machinery Co., Ltd. started to enter the industrial silicon, ferroalloy ore, silicon calcium and other metallurgical industries. This product uses SOLIDWORKS software to conduct a finite element analysis of the structure of the multi-functional ramming car working device and find its structure Weak area of strength. Based on the analysis results, the structure of the working device is optimized, the structural strength is improved, and the material cost is saved. Finite element analysis is a very effective method in shortening product development cycles, improving product reliability, and reducing production costs.