Second, external environmental factors. First, the family is the main environment in which children live, and it is particularly sensitive to children's interpersonal relationships and family atmosphere. The living habits, ideology, style and sentiment of parents and other family members are of great significance to the cultivation of children's moral character and the formation of personality. The second is the school. Children's enrollment is a starting line for life to go to society. Educational principles and policies, school atmosphere, teachers' attitudes and methods, academic performance and teacher-student relationship can all affect students' psychological development. The third is society. Social environment also has a great influence on children's development, and social isolation will affect children's social ability. The housing designed by high-rise building units in big cities reduces the communication between children and deprives children of the world where they can move freely. Noise, traffic congestion and air pollution in downtown areas will affect children's psychological development.
Third, the influencing factors of education. Including excessive protection and doting on children, being too strict with children, being too relaxed with children, being cold and hot with children, etc. It will affect children's mental health.