When children reach 8 months of age, they can begin to stand, because the strength of the lower limbs of children at 8 months of age is not well developed, children should be supported by their parents when standing, and the time spent standing should not be too long, within 5 minutes. When a child reaches 10 months of age, he or she can be supported to walk slowly for a few steps, and when he or she reaches 15 months of age, most children can walk independently and more steadily. Before 8 months of age, it is not recommended that parents give their children support to stand, because when children stand too early, because the lower limb strength is not well developed, children’s bones are not too hard, this time children walk too early will affect the bone development, resulting in children appear X-leg, O-leg and other symptoms.