The use of day surgery anesthesia in oral treatment is to use new short-acting anesthetics, advanced anesthesia techniques and monitoring means to provide patients with more comfortable and convenient medical services, as well as to satisfy the patients to be able to go home on the same day of surgery. The goals of day surgery anesthesia are: to ensure that patients are relaxed and comfortable before surgery; to meet the various needs of oral treatment during surgery; to allow patients to wake up in a safe state during the awakening period; and to have a low chance of post-anesthetic complications during the recovery period. After the recovery period of daytime general anesthesia, if the patient is conscious, orientation and muscle strength back to normal, all vital signs are stable, and accompanied by a guardian can meet the requirements of the patient to go home on the day of treatment. Relevant studies have shown that for children’s daytime anesthesia techniques, static-aspiration complex anesthesia is safer and more effective. It is less irritating to children’s respiratory tract, and with the inhalation of laughing gas, it is more easily accepted by children. Fast onset of action, fewer adverse reactions, easy to adjust the depth of intraoperative anesthesia, as well as rapid awakening, complete wakefulness after stopping the drug, and few complications such as the phenomenon of falling asleep again. With the cooperation of professional anesthesiologists, all oral treatment procedures can be completed at once under general anesthesia. Daytime general anesthesia under children’s oral treatment cycle is short and efficient, not only shorten the duration of the disease, to solve the pain of the child, while eliminating the negative stimulation of the child’s psychology. Due to the influence of traditional concepts, the concept of oral treatment under general anesthesia has been difficult to popularize in China. However, with the rapid development of modern anesthesia technology, the safety of anesthesia has been greatly improved. So far, daytime general anesthesia children’s oral treatment means has been adopted by China’s major top medical schools. Clinical practice has proved that children’s oral treatment under general anesthesia is a safe and effective treatment method.