The dosage of pediatric anesthesia is usually calculated on the basis of the kilogram of body weight as stated in the drug instructions, but the dosage should be adjusted according to the child’s physical condition and systemic condition. The dosage of pediatric anesthesia drugs is not definitive and should be individualized according to the child’s body weight and systemic condition, for example, when induction of pediatric anesthesia It is recommended that propofol be given slowly until clinical signs indicate that anesthesia is taking effect, and the dose should be adjusted according to age and or weight. The dose should be adjusted according to age and or body weight. Most patients older than eight years of age are anesthetized on a weight-based basis, and children younger than that age, especially those between one month and three years of age, may require a higher dose, and lower doses are recommended for pediatric patients with an ASA classification of 3-4.