The baby’s brain development and intellectual development are consistent, the fastest brain development before the age of 3, and then gradually slowed down, before the age of 5 that is, 80% of the entire human brain development. Therefore, before the age of 3 is a critical period of intellectual development. Therefore, it is especially important to seize this period to help children develop their intelligence. 1, 0 ~ 2 months At this time the baby to taste, hearing, touch and visual external stimuli are responsive. 2 months of the baby prone can lift the head, eyes can follow the movement of objects, easily attracted by brightly colored objects. Small game: stomp toys. Parents will soft ball or soft toys on the side of the baby’s crib, the toy pushed to the baby’s hand, he will use his hands to push the toy away; then the toy pushed to the baby’s feet near, he will use his feet to stomp on the toy. The purpose of this game is to train the baby’s hands and feet flexible ability. 2.3~7 months This is the period of perceptual exploration guided by the baby’s vision. Babies can actively explore things around them. Small game: hide and seek. The mother covers her face and asks the baby, “Where is mommy?” While the baby is looking, suddenly reveal her face and call out “Meow” to make her laugh. Then cover the baby’s face and let him learn to show his face. Gradually let the baby control the game by himself, train the baby’s analysis and judgment ability, and improve logical thinking ability. 3.8~13 months The child’s perception ability becomes sensitive and starts to like imitation. Small game: clap hands. Sit down face to face with your baby, hold his two hands and say “clap your hands” while clapping; then without holding his hands, clap your hands and say “clap your hands” rhythmically to teach him to imitate and train his ability to understand language and imitation. 4.14~18 months Babies begin to produce abstract thinking. At the age of 1~1.5 years, babies can use their senses of sight, hearing, touch, smell and taste more precisely and can interact with their parents’ guidance. Small game: musical hula hoop. Parents and babies hold hands to form a circle, when the music starts, parents take the baby to step in a clockwise direction, the music stops, guide the baby to stop. After doing 2 to 3 times, you can let your baby try on their own. 5.After 21 months Baby can master symbolic relationships, such as language comprehension, language logic, etc. Mini-game: Tell a simple picture story to the baby, and then let the baby tell it to the parents. Parents can combine the pictures and repeat some key language and action descriptions, or let the baby repeat after them. Then let him look at the pictures and tell the story, and parents can remind him when there is difficulty. If the baby speaks inconsistently with the book, do not correct it, and affirm his reasonable creation. When helping babies to develop their intelligence, we should follow the nature, in line with the baby’s developmental stage, to give the right time to stimulate, to create a learning environment. The most important thing is to “step back” and give your baby the space to develop independently.