Since the 1980s, the mutual penetration and interaction between knowledge and economy have become stronger and stronger, which has caused fundamental changes in the global economy, as follows: on the one hand, knowledge elements are more involved in economic activities; On the other hand, in the economic activities aimed at improving competitiveness, the knowledge orientation is constantly enhanced, and the knowledge content of products and services is constantly improved. Nowadays, economic growth is more dependent on the production, dissemination and application of knowledge than ever before. The new economic form-knowledge economy, with its vigorous vitality, indicates that 2 1 century will be the era of knowledge economy.

Knowledge economy is not a strict economic concept, and its origin is related to the new economic growth theory. Under the background that the world economic growth mainly depends on the production, diffusion and application of knowledge, American economists Romer and Lucas put forward the new economic growth theory. Romer regards knowledge accumulation as an endogenous independent factor of economic growth, and thinks that knowledge can improve investment efficiency and knowledge accumulation is the source of modern economic growth. Lucas' new economic growth theory projects technological progress and knowledge accumulation on human capital. He believes that the special and professional human capital that shows workers' skills is the real source of economic growth.

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