Abstract: In the era of COVID-19 epidemic, the evolution and remolding of energy pattern were accelerated, energy technology and its related industries became the new economic growth point. The development of energy industry can’t be separated from the multi-dimensional guidance and support of policy, and policy analysis can be used as one of the important indicators to predict the development trend of energy industry. Therefore, this research starts with the policy perspective, establishes an objective standardization policy text quantification system, based on the five dimensions of policy objective, administrative measures, guidance measures, financial measures and fiscal measures. In this paper, the policy support degree of subdivided energy industry was calculated and the development differences of energy industry were analyzed. Combing the energy policy documents issued from the first quarter of 2015 to the third quarter of 2015, the comparative results of historical trends show that: the overall policy support for the energy sector has remained stable during the 13th five-year plan period and has continued to rise after 2020. The results of the inter-industry comparison show that the current policy tools for the renewable energy sector focus on technical and resource support, while traditional energy industry policy tools are more focused on guiding the efficient operations of the industry.