Since China's reform and opening up, governments at all levels have continuously issued policies to support small and micro entrepreneurship. At different stages of economic development, relevant policies have a distinct brand of the times. Under the upgrade strategy of "Double Creation" of the State Council in 2018, we need to further consider the path of policy optimization. In this study, 172 entrepreneurship policy texts issued by the central and ministries from 2002 to 2018 are selected to mine the content of the policy texts, in order to understand the evolution trend of hot issues of entrepreneurship policy in China, and to provide ideas for the follow-up policy introduction. Using the quantitative analysis method of policy text, with the aid of policy tool analysis and policy text mining means, semantic network analysis method, and Ucinet tools, this paper makes in-depth analysis of national policy concerns. The results show that:1) In the past 17 years, China's entrepreneurship policy has shown a trend of "inverted U" publication. After reaching its peak in 2015, the number of articles published has fallen. 2)China's entrepreneurship policy system has been basically established, and the policy chain has gradually formed. Around the national strategy and the "root policy" of each period, the policies between the central and ministries have a good echo. 3) The main body of policy shows a trend of diversification and coordination. The number of joint publications increases rapidly, forming complex inter-governmental relations. 4) Policy instruments show a comprehensive and unbalanced trend. The utilization rate of policy tools such as "government procurement" and "external contracting" to stimulate demand is low. 5) Policy concerns are characterized by deepening and times. "Industry convergence", entrepreneurship "service" and entrepreneurship "guarantee" have become the focus of attention. However, the policy of "small and micro + new technology" and "One Belt and One Road" initiative are inadequate. The innovation of this study is embodied in the self-built "China's Entrepreneurship Policy Text Database", the measurement and data mining of policy texts, the stage evolution analysis and the analysis of ideas and conclusions.