The standardized value of height for a five and a half year old girl is about 113.5cm and the standardized value of weight is about 19.33kg, but there are individual differences. Under normal circumstances, the standardized value of height for five-and-a-half-year-old girls is about 113.5cm, with a normal height range of 109.2~118cm, and the standardized value of weight is about 19.33kg, with a normal weight range of 17.09~21.98cm. It should be noted that the child’s height and weight are affected by heredity, nutrition, as well as the environment, disease and other factors, so individual differences are large, the standard value or range of height and weight can be used as a reference, but stick to the standard. If a five-and-a-half-year-old girl’s height and weight are significantly different from those of children of the same age, it is recommended that she consult a doctor in time to exclude disease factors, and if necessary, actively treat and deal with them.