Selecting some data management and sharing policies from biomedical scientific study funding agencies in both USA and Britain, the paper carries out detailed comparative analysis of its basic characteristics and the 25 specific indexes of the 5 categories, including policy overview, intersection point of data, data storage and management, data sharing and data security and protection. Combining with the specific fundamental situation of precision medicine in China, it gains enlightenment in policy making to provide references for the formulation of specific data policy of precision medicine in China.