The main signs of the establishment of pedagogy are as follows: first, from the perspective of objects, education constitutes a special research field. It has been paid special attention by thinkers or educators; Secondly, in terms of concepts and categories, a special concept and category of education and a system of concepts and categories reflecting the essence and laws of education have been formed; Thirdly, in terms of methods, there are scientific research methods; Fourthly, as far as the results are concerned, there have been some important educators and some specialized and systematic educational works. Fifth, as far as organizations are concerned, specialized educational research institutions have emerged. The establishment of pedagogy has a historical process, which has gone through more than 200 years.