Abstract: This article analyzes the application implementation of assembly simulation technology in the process formulation of home appliances, and studies the implementation of assembly simulation tools in the process assembly design of products, and seamlessly connects with the existing enterprise product development and trial production process. In line with the elements of review, a set of review system based on the line body was established throughout the whole process of product trial production to mass production. The system is applied and validated through actual product development and application cases, which proves that the line simulation review system has achieved remarkable results, can effectively enhance the product structure anomaly recognition capability at the project stage, improve the process assembly design capability, shorten the product development cycle, and reduce research and development costs