Italian preschool educator Montessori is regarded as one of the most influential figures in the history of preschool education in the world since wrobel. Montessori engaged in medical work in his early years and studied the psychological education of mentally retarded children. 1907, the first "Children's Home" was opened in the slums of Rome, and the educational methods of mentally retarded children were applied to normal children. Since then, Montessori has successively held training courses at home and abroad, and trained many Montessori school teachers. From 19 14 to 1935, Montessori teaching method prevailed in Europe, but its implementation in Europe was hindered by the ban of fascist regime. After World War II, Montessori was once again welcomed by European countries. In 1960s, because Hunt and Bruner pointed out in their works that early environment can greatly affect children's intellectual development, Montessori teaching method became popular in the United States in the voice of educational reform. So far, Montessori still has a wide influence in the field of early childhood education, and Montessori courses can still be seen in many countries in the world.