Objective:To analyze 3 123 cases of medical device adverse events(MDAE)and provide some suggestions for the MDAE monitoring.Method:By the retrospective case study,3 123 MDAE reports were analyzed in Hunan Province in 2007.Result:The reports mainly came from medical institutions and other drug-use units.Intrauterine devices (IUD),medical suture thread and orthopedic implants caused a higher proportion of adverse events.The quantities of MDAE reports were imbalanced in different regions.Conclusion:The MDAE monitoring should be promoted by propaganda and training in order to ensure the safe use of medical devices in public.