Developing and strengthening grain and oil processing enterprises is great significance to the highquality development of China’s grain industry and the construction of a powerful nation in the grain industry.This paper constructs 11 financial indexes for evaluating the operating performance,selects 21 listed companies in-volved in oil processing,feed processing and deep processing of wheat and rice as research samples,uses factor analysis method to evaluate,compare and analyze their performance based on their financial data of 2017.The resear...