The second Pahlavi period began after Shahrivar 1320 and with the removal of Reza Shah. This period brought historical changes. The importance of this research is due to the fact that most of the schools built in this period were faced with a comprehensive physical and architectural style transformation, as well as the weakening of cultural stability in the whole country and specifically in the city of Isfahan. The purpose of this research is to identify the factors that caused a decrease in cultural stability in the schools of the second Pahlavi period and also to investigate the historical factors effective in the construction and formation of new schools of the second Pahlavi period and its effect on the architectural structure of the schools of this period and the effect of changing the physical shape and architectural style of the schools. It is based on changing the educational structure from the traditional method to the modern method. The method of this research is descriptive-analytical and case study strategy. Four case samples were selected and the history of the formation of that study was completed with the library and documentary method, and then with the field method of school information, these schools were compared with each other based on the research indicators. In the results obtained from the factors of the formation of schools, it is possible to mention the nationalization of the oil industry, the increase of national income, the white revolution and migration to the cities during this period, which felt the need to speed up the construction of schools. In Isfahan, due to the existence of the Isfahani style, this style was combined with the modern style. The decorations were reduced to a minimum and the porch was gradually removed and the columns became simple and without decorations.