As one of the main water-soluble composites of Radix Salviae,salvianolic acid B is a phenolic acid ingredient of the Chinese drug,which is rich content in the herb and has strong pharmaceutical activity. It is used to treat cardiocerebral vascular diseases,antagonize hepatic/renal fibrosis,prevent cancer, and promote stem cell proliferation and differentiation.In the researches of its acting mechanisms,rather deepened studies have been carried out for its application on cardiocerebral vascular diseases,but that for others are rather fewer. As one of the main water-soluble composites of Radix Salviae, salvianolic acid B is a phenolic acid ingredient of the Chinese drug, which is rich content in the herb and has strong pharmaceutical activity. It is used to treat cardiocere vascular diseases, antagonize hepatic / renal fibrosis, prevent cancer, and promote stem cell proliferation and differentiation. rather the deepened studies have been carried out for its application on cardiocere vascular diseases, but that for others are rather fewer.