The year 2020 is a special year in the history of medical device adverse event monitoring. Medical device adverse event monitors actively devote themselves to the novel coronavirus epidemic prevention and control work，provide services and technical support for the clinical medical treatment and medical device industry，and make important contributions to the success of epidemic prevention and control work. At the same time，actively promote the medical device adverse event monitoring and evaluation measures for the management of the implementation，and further perfect the adverse event monitoring system，three guidelines document issued，adverse event monitoring work to further improve quality，collected dramatically increased the number of suspected adverse event reporting，through timely detection and treatment of product risk adverse event monitoring，monitoring work has made new progress and achievements，and played an important role in ensuring the safety and effectiveness of medical equipment.