Experimental pedagogy is a theory that emerged in some European and American countries at the end of 19 and the beginning of the 20 th century, and studies children's development and its relationship with education by experimental methods of natural science. Its representative figures are German educators Man Mei and Rai, and its representative works mainly include Man Mei's Introduction to Experimental Pedagogy, Outline of Experimental Pedagogy and Rai's Experimental Pedagogy. Main points: ① Oppose Herbart's pedagogy which emphasizes conceptual speculation. ② Advocating the application of research results and methods of experimental psychology to educational research. ③ Divide educational practice into three stages: forming a hypothesis about a certain problem; Make an experiment plan according to the hypothesis and carry out the experiment; The experimental results are applied to practice and proved to be correct. The difference between educational experiment and psychological experiment is that psychological experiment is carried out in the laboratory, and educational experiment is carried out in the real school environment and teaching practice. ⑤ Using the methods of experiment, statistics and comparison, this paper explores the characteristics of children's psychological development process and their intellectual development level, and takes the experimental data as the basis for reforming the education system, curriculum and teaching methods.