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The aim of the present study was to investigate the educational activities of the preschool mathematics books regarding geometric shapes using documentary method. For the analysis, we used the document published in 1396 (2017) by the Ministry of Education in Iran for preschool level., as well as the zero, first and second level of the revised Van Hiele Model (Clementes and Batista, 1992) including Pre-recognition, Syncretic and analysis as the criteria. At first level, 10 criteria for analyzing activities of geometry shapes from the first three levels of the revised Van Hiele Model (Clementes and Batista, 1992) exteracted. Then five textbooks which were recommended by Education Growth Bibliography, Welfare Organization and several preschool centers selected and their geometric shapes content evaluated according to the 10 extracted criteria. Results showed the highest frequency of educational activities belonged to level one and the lowest frequency beloged to zero level of the revised Van Hiele model. The study concluded that the content of the preschool mathematics books needs to be revised and the educational activities of higher level than two recommended to be transferred to higher grade mathematics textbooks.