The theory of industrial organization is a subject on the enterprise behavior and organization system in the market economy.The theory has experienced constant evolution and development since it was established,from the traditional theory of industrial organization,to the new theory of industrial organization,to the modular theory of industrial organization brought out by the use of information communication and network technology.Based on the analysis of main ideas and proposition in each stage of the theory of industrial organization,as well as the summary of its new developments,the thesis discusses the prospect about the development trend of the theory of industrial organization in the future.