It is the highest stage of the development of knowledge economy. The second venture of private enterprises means the highest stage of the development of knowledge economy, with knowledge industry as the leader and knowledge operation as the core. Knowledge management is the mode of economic growth in the era of knowledge economy. Through the infiltration and integration of knowledge into other production factors, knowledge plays a dominant role in the production system, knowledge industry is the forerunner and guide of other industries, and human development is sustainable.