For the characteristics of the diversified factors affecting anesthesia safety, the preventive measures for anesthesia accidents and complications should also be multifaceted. 1, the patient side: should pay attention to ① preoperative fully understand the condition is the most basic condition to ensure the safety of anesthesia. Only by being familiar with the condition and making correct judgments can the implementation of anesthesia be “well-informed” and “targeted” or “anesthesia according to the person”. ② Make full use of the monitoring indicators and functions of the instruments and equipment during anesthesia to monitor the changes in vital signs as closely as possible. ③ Pay attention to the doctor-patient relationship, respect the service recipient, strengthen trust and understanding. 2, physicians: 1, theoretical and technical level of anesthesia personnel to improve. At present, except for some large hospitals in China, the construction of anesthesia departments in most hospitals is quite weak, and the academic status and discipline development are still in the initial stage or initial stage. Personnel engaged in anesthesia should acknowledge and face this disciplinary status, and strive to learn business theories and techniques with a more positive attitude. We should have confidence, goals and measures to continuously improve ourselves and the overall level of the department. 2.Love the job. Faced with the current situation of the discipline of anesthesia, we should try to overcome some bad emotions, adjust our self-perception, and know the difficulties and advance. 3.Strictly abide by the rules and regulations and management measures. Since we understand the high-risk nature of the anesthesia profession, it is more important to firmly establish the awareness of safety precautions, and to develop safety and quality control measures suitable for the unit in combination with the characteristics of their work. Adhere to the basic principles of standardized operation, in accordance with the law, prevention-oriented. 4, good at accumulating and summarizing clinical experience. 3.Surrounding environment: The influence of external conditions such as the surrounding environment should not be ignored when emphasizing the safety and quality of anesthesia. ① To establish a high degree of responsibility for the patient, improve the monitoring conditions. ② To fully understand and skillfully use the various surrounding instruments and equipment, especially for the updated facilities should be trained in a timely manner. The functions of the monitoring equipment should be fully utilized, but the phenomenon of dependence should be overcome, and the anesthesia condition should be judged correctly and timely. ③ Regardless of the size of the surgery, we should focus on the training of coordination and cooperation ability between various positions and specialties in order to respond and handle various emergencies in a timely and accurate manner. ④It is necessary to strengthen awareness in terms of hospital management ideas, improve anesthesia and surgical conditions, and supplement the necessary technical strength. Summary There are many and complex factors for the occurrence of anesthesia accidents and complications, some of which are due to a single factor, but most of which are due to a combination of various factors and are relatively more difficult to deal with. These factors usually involve various aspects such as hospital management system, preoperative preparation, understanding and assessment of the condition, theoretical knowledge and clinical experience of the anesthesiologist, proficiency in operating techniques, emergency response capabilities, surgical operations, drug effects, concomitant diseases, anesthesia facilities, monitoring conditions, and emergency measures. During the whole period of anesthesia, these many factors constitute a “domino effect” on the success or failure of anesthesia and surgery as well as on the safety and security of patients.