Salvia miltiorrhiza, as one of the top grade herbs in Sheng Nong.s herbal classic, occupies promoting blood circulation function. The pharmacological of Salvia miltiorrhiza is obvious and the relevant research are extensive.However, there is still potential space for development. In this paper, the patents about Salvia miltiorrhiza were analyzed.The patents were collected from Patent Search Service System of"State Intellectual Property Office of the People's Republic of China". A total of 29 468 patent documents related to Salvia miltiorrhiza were retrieved. The health products and agriculture of Salvia miltiorrhiza has been well developed in recent years. The technology life cycle results show that the research of Salvia miltiorrhiza is in the growth stage. The analyze result shows that the application number were increasing year by year, and the increasing was sharp. The average number of patent applications of the top 10 patent holders is about 100, and the research focus is different. The distribution of patent technology in Salvia miltiorrhiza appears to be diversified, mainly in the fields of medicine, agriculture, chemical engineering and engineering. The results of high-quality and effective patent technology distribution show that classic research fields of Salvia miltiorrhiza are A61 K35 and A61 K36. The research of Salvia miltiorrhiza is still in rapid development stage, and involves a wide range of areas to be further studied and developed.