Abstract: In order to improve the level of supply chain management of tractor parts and improve the management efficiency of parts, it introduced big data and information technology in the research process of supply chain management, and used genetic algorithm to optimize the data analysis and processing, determine a reasonable data evaluation function of suppliers, and improve the intelligent level of supply chain management. Taking the supply chain management of tractor parts as an example, it compared the delivery time of products with and without big data information technology. The results showed that it can significantly shorten the delivery time of products and improve the efficiency of supply chain management by using big data information technology.