Family education plays an important role in promoting the development of preschool children. First of all, family environment plays a decisive role in children's growth and study. A good family environment provides a safe, stable and warm atmosphere and promotes the healthy development of children's body and mind. The emotional support and care of the family helps to cultivate children's self-esteem and self-confidence, and stimulate their interest and motivation in learning. Secondly, family education provides children with opportunities for early learning. Through close interaction with parents, children are exposed to learning content in various fields such as language, socialization, cognition and emotion in daily life. Parents can be their children's first teachers, read, play and explore with their children, and cultivate their ability to observe, think and solve problems. Finally, family education is also very important for the transmission of values and the cultivation of morality. Family is the earliest social environment that children come into contact with, and parents' words and deeds have a far-reaching influence on the shaping of children's values and moral concepts. Family education can help children form correct values and cultivate their moral awareness and sense of social responsibility.