Doctor of Pharmacy, doctoral tutor, chief pharmacist of Beijing Hospital Pharmacy Department. The research direction is the research of new pharmacokinetic methods and key technologies of Chinese and western medicines; the research of pharmacokinetics of drug interactions; the research of drug clinical pathway; the research of hospital drug safety vigilance. Over the years, he has published more than 100 papers, completed more than 50 clinical studies of new drugs, and formulated a number of new drug quality standards (including the separation of chiral drugs, the determination of cis-trans isomers, etc.). So far, the new drug projects in charge of research have won four national new drug certificates, 2 first prizes and 3 second prizes of bureau-level achievements. He is also a member of the National Pharmacopoeia Committee, an NMPA new drug evaluation expert, a member of the NMPA drug consistency evaluation expert group, a member of the National Health and Family Planning Commission's Rational Drug Use Expert Committee, and a national major new drug evaluation expert.