This paper discusses Zhu's thought of children's education and analyzes its significance to contemporary children's education. 1. Pay attention to fostering education. 2. Teachers and friends need to be carefully selected. 3. Emphasize instant learning. 4. Promote positive education. Zhu has rich educational experience, has a preliminary understanding of people's psychological characteristics, and has absorbed the experience of predecessors. He divided human education into two stages, namely "primary school" and "university". These are two independent and interrelated stages. Primary education is the foundation of university education, and university education is the deepening of primary education. In these two stages of education, Zhu paid special attention to primary education and advocated that children should be taught early. Zhu emphasized that children's education is basic education. Laying a good foundation in primary school is like laying a blank mold for sages. When you grow up, you can become a saint by processing on this basis. He further pointed out that if you lay a good foundation in childhood, college will be hard. If the foundation of childhood is not well laid, it is very difficult to remedy it. He repeatedly emphasized the significance of children's education before 15 years old.