Abstract: Aiming at complex and impractical problem of feed formula software for oil chicken breeding, an intelligent feed formula system based on an optimization algorithm was designed to meet feed and nutrition management standard and has function of feed formula proportion optimization．Operating software was in JAVA, and the built-in optimization algorithm was in Python．The system had raw material management function, nutrition management function and historical feed formula management function．A modified simplex method was used to solve problem of feed preparation proportion．Intelligent formula system of oil chicken feed run stably and could meet need of users．Average time required for proportion optimization of modified simplex method was 0.031 s, and accuracy was 100%．Average time required for genetic algorithm to calculate proportion optimization 2 000 times was 3.020 s, and accuracy was 0%．The system successfully realized requirements related to feeding formula in process of oil chicken breeding, verified effectiveness of optimization method of oil chicken feed ratio, and improved formula calculation efficiency．The system was easy to operate and convenient for small and medium-sized farms, could integrate advanced breeding technology into grass-roots farmers and promote healthy and sustainable development of whole oil chicken industry．