Taking SCI-Expanded database as sources, the paper compares the research strength among 3 famous specialized infectious hospitals in Beijing: 302 hospital of PLA, Ditan hospital and Youan hospital4 aspects are analyzed, including total amounts, citation status, impact factor of publication journals and fund plan paper respectivelyThe results show that the three hospitals are developing in a stable and healthy way in recent years, 302 hospital of PLA has certain research advantages