The difference between intravenous anesthesia and general anesthesia: intravenous anesthesia is mainly through intravenous anesthetic drugs to achieve the effect of anesthesia, intravenous anesthesia does not require tracheal intubation, anesthesia machine assisted breathing, but simply intravenous anesthesia. General anesthesia is through the combined application of drugs, analgesia, sedation, muscle relaxation and other such drugs, after the use of the patient is not breathing, the need for anesthesia machine to provide breathing for the patient, to ensure the tidal volume of breathing, breathing frequency, control the state of anesthesia, to ensure life safety. So intravenous anesthesia is to do some short surgery, for the big surgery should be general anesthesia.