Anesthesia machines are important auxiliary equipment for clinical anesthesia. Doctors and engineers should actively grasp the key technical progress in anesthesia equipment and deal with the problems and risks associated with its use. To summarize and analyze the clinical progress and application trends of key anesthesia technologies,such as automatic detection of anesthesia equipment,low flow,target control,depth prediction,lung protection and the combination of static and inhalation anesthesia,and to discuss thinking of fault analysis,formulation of maintenance strategy,and troubleshooting methods by combining hardware and software based on common faults of anesthesia equipment and maintenance examples. The aim is to provide thinking for reducing the workload and improve the quality of medical care of medical institutions,and to provide partial guidance for doctors and engineers working in medical institutions.