In order to promote the responsible development of precision medicine in China, the current situation of precision medicine in three major fields (clinical, research and commercial) was briefly introduced, and key ethical issues or disputes in each field (including informed consent, return of incidental findings, and allocation of medical resources in the clinical field; informed consent, return of research results, and data use and sharing in the research field; genetic counseling, clinical utility of genetic testing, and use of data in the field of direct-to-consumer genetic testing) were discussed. It is necessary to actively meet these ethical challenges for the development of precision medicine in China.