Seed,the lifeblood of agriculture,is at the forefront of agricultural production.Identifying the strategy that multinational corporations adopt to monopolize the agricultural industry through transgenic seed technology is of great significance for China to establish a system of safe seed industry.This paper analyzes the process of monopolizing transgenic seed technology by multinational corporations and discloses the strategic behavior of multinational corporations in monopolizing transgenic seed technology.Based on the the whole process of the impact of transgenic soybean on China’s soybean industrial chain,this paper makes an empirical analysis on the effect of multinational corporation’s seed monopoly and induces various industrial risks resulting from monopoly of transgenic seed technology by multinational corporations.Finally,this paper puts forward some policy suggestions on how to eliminate the risks relating to monopoly of transgenic seed technology and attach importance to biomass and safety of food and agriculture.