Surgical general anesthesia requires fasting and water fasting, quit smoking, breathing exercises, prevent cold and flu infection and maintain sufficient rest, etc.. Surgery before general anesthesia nurses and anesthesiologists will be with the patient for pre-operative precautions, and understand the patient’s condition, to determine the general anesthesia program. Usually 6 to 8 hours before the operation need to fast, 4 to 6 hours of water, in order to prevent in the process of surgical anesthesia due to the gastrointestinal tract of the residue back to vomit, the occurrence of aspiration, and thus into the lungs to occur pneumonia. Surgical general anesthesia also need to quit smoking in advance to prepare, because smoking will stimulate the respiratory tract, which leads to postoperative sputum discharge unfavorable lung infection. Surgical anesthesia before the operation is recommended to carry out deep breathing exercises, not only can prevent complications such as pulmonary atelectasis, but also for some thoracic surgery prognosis is also helpful. During the operation, it is necessary to closely monitor the vital signs of the anesthetized person, keep the breathing and intravenous channels open, and control the dosage of anesthesia-related drugs. It is also very important to prevent colds and get enough rest during and after surgery, and to keep a good state of mind.