As one of the important subjects in the field of venture capital, the government plays a very important role in a country's economic development and industrial promotion. We should give full play to its macro-guidance and regulation functions, ensure a good external environment for venture capital, provide policy and legal support for venture capital, overcome the problem of "market failure" and prevent the occurrence of "crowding out effect". At the same time, as one of the main providers of capital, the government will also participate in the operation of the capital market. Through direct or indirect participation, it is of great significance to support innovative enterprises in the initial stage of stumbling, promote the integration of technology and market, the docking of innovation and industry, incubate and cultivate emerging industries facing the future, guide and standardize the investment behavior in the capital market, and promote the economy to the middle and high-end level.