The hotspots and trends in China's policy quantification research are important references for further development of this field. The research popularity of policy quantification was analyzed based on bibliometric methods, research hotspots through keyword clustering were discovered, and research frontiers through keyword bursts were explored. The results show that the research popularity of policy quantification in China has shown a multi-stage growth trend. The research hotspots focus on three themes: semantic quantification analysis of policy text based on topic mining, multidimensional framework policy text analysis based on policy tools, and policy quantification evaluation based on PMC index model. The research frontiers are concentrated in two areas: policy quantification evaluation research and policy quantification research related to smart cities.