The baby’s intellectual development at one year and two months old can be taken as a reference standard in the following five aspects: First, gross motor, can walk alone freely without any support. Second, fine motor, baby can spontaneously pick up a pen when he sees it, spontaneously scribble on paper, leave a pencil path, and can get a small pill from a bottle. Third, adaptability, can turn the book twice, do not need to turn page by page, can be several pages at a time, more applications of children’s picture books, slightly thicker paper books; can cover the round box, when the cap is taken off the bottle, the mouth is placed facing up, the baby can invert the cap and cover it correctly. Fourth, language function, can point out the five senses in 3-4 places; can say 3-5 words other than “mommy and daddy”. Fifth, social behavior, can take off socks by themselves.