I. Overview Emotions are of special significance to infants’ adaptation to survival. The infant is born with the ability to respond emotionally and shows his emotional responses very early after birth as his important way of adapting to life. The younger the child, the higher the place of emotions in life, which is characteristic of infant psychology. Second, the characteristics of emotional development (1) fallibility, that is, children’s emotions are easily governed by the external environment, such as the encounter of unhappy things easy to cry, a little persuasion and broken into tears, so that children’s emotions are not stable enough at this time. In addition, children’s emotions are also susceptible to the infection of others, if other children shout, he also shouted; other children show fear, he is also afraid. With the development of children’s life experience and language skills, the stability of children’s emotions will gradually grow up. (2) impulsivity, that is, children are not good at controlling and regulating their emotions. For example, when the child first sees the electric socket on the wall and shows great curiosity, although the adult does not allow the child to touch it because of the danger, the child cries out and insists on touching it. (3) Inconsistent response, that is, the same stimulus, some children can respond strongly, some do not respond. 2 years old, children’s emotional expression increasingly rich, complex, such as joy, anger, the initial love and hate, etc.. Under incorrect education, some bad emotions and feelings can also arise, such as shyness when seeing people, fear of the dark, etc. Third, the developmental process Emotions are an important means for infants to make interpersonal interactions. Shortly after birth, infants have a generalized understanding of people, anyone who teases will smile, and at 2-3 months of age, when infants are fed, they will be active all over or laugh out loud. Emotions directly influence infant behavior and play a role in stimulating and promoting infants’ cognitive activities. 5-6 months of age when something new may be more noticeable. Infants are active in everything they do in a happy mood and are happy to learn, while in a bad mood they do not listen to, learn or do anything. At 6-7 months, babies start to show the emotion of recognition and the emotion of interdependence with relatives, which is strongest at 13-15 months and gradually decreases after 1.5 years. 1 year old babies can experience the relationship with people and things, such as the same emotion. 2 years old babies already show the emotion of happiness, exhilaration, love of relatives, love of children, fear, disgust, distress, and even jealousy. The emotional reactions of infants are mostly due to whether their basic needs are met or not. Moreover, infants’ emotional reactions are very unstable and fleeting. However, these transient and low-level emotions are the basic conditions for the cultivation and development of rich and high-level emotions. The formation of the child’s personality and physical and mental health later is based on these emotions gradually developed. Young mothers and fathers must pay attention to one thing: they must not compare providing positive stimuli with spoiling. For example, the use of snacks to make the baby happy, but the result is that the baby is not happy without snacks.