The principle of integration. There are five principles in social education for preschool children, namely, the principle of goal, the principle of activity, the principle of practicality, the principle of reinforcement and the principle of consistency. To achieve this goal, we should pay attention to the following three points: first, teachers should maintain a high degree of consistency in educational attitudes; Second, we should be able to unify all kinds of educational forces within kindergartens and foster care institutions; Third, we should unify the educational influence of all aspects of society.