General anesthesia is generally divided into inhalation anesthesia, intravenous anesthesia and static-absorption compound anesthesia, each anesthesia operation is different. 1. Inhalation anesthesia: inhalation anesthesia first need to add the appropriate amount of anesthetic in the anesthesia machine, through the anesthesia machine’s special pipeline or mask to the patient’s inhalation of anesthetic to achieve the purpose of anesthesia, this anesthesia is relatively short, commonly used in intubation surgery. 2. Intravenous anesthesia: Intravenous anesthesia generally requires the establishment of venous channel first, and then the anesthetics will be delivered to the blood vessels through the venous channel, and it is often used with inhalation anesthesia in the larger surgery. 3. Static-absorbent compound anesthesia: firstly, it is necessary to use fast-acting sleeping drugs for patients to make them enter a deep state of sleep, and then inject muscle relaxant drugs into patients’ bodies through intravenous drip, and then implement tracheal intubation to control respiration. Throughout the operation, continuous anesthetic drip or inhalation of anesthesia gas is required to maintain general anesthesia until the end of the operation. Different types of surgeries require different anesthesia times and methods, and the dosage of anesthetics needs to be controlled very professionally and accurately. During the anesthesia process, cardiology, blood pressure and other vital conditions need to be monitored.