Infants need careful care to grow and develop successfully. Parents can increase their infant’s sense of security by increasing companionship, enhancing interaction, and improving the environment so that he or she can grow up healthy and happy. 1. Increase companionship: Parents should spend as much time and quality time as possible with their infants, especially before they fall asleep, so that they feel they are in a safe and welcoming environment. 2. Enhance interaction: Measuring the degree to which an infant feels secure and fulfilled also depends on whether the infant is receiving full attention. When the infant makes a movement, the parents should receive some signals from the infant and interact with him/her so that the infant can feel the presence of the parents. At the same time, a tacit understanding of mutual trust will be formed between parents and children; 3, improve the environment: infants’ neurological functions are not yet well developed, the nerves are still relatively sensitive, the external adverse stimuli can easily cause infants to wake up and cry. Some babies born by cesarean section are especially insecure and need to be in the arms of their parents to sleep peacefully. Parents had better be closer to the baby, while keeping the indoor environment quiet and comfortable, to prevent the baby from being affected by adverse stimuli; 4, other: parents should also pay attention to create a good family atmosphere for the baby, the relationship between parents has a very important impact on the baby to get a sense of security. Parents are the world to the infant, if parents often quarrel in front of the infant, unhappy, may cause the infant to cry more than one, sleep unsteadily, always will turn over and over.