Textbooks content along with istruction prepare students to accept roles tailored to their gender characteristics. The purpose of this studu is Content analisis of Iranian primary school textbooks based on gender roles with an emphasis on occupations. The method used for the content analisis in present study is Shannon's entropy and the unit of analysis is text, questions, exercises and images that investigated in all of 3725 pages were reviewed. Statistical population was 9 textbooks subject matter  including Persian texts (reading), Persian texts (writing), Sciences, Heavenly gift, Quran texts, Mathematics, Social studies, Thinking and research, Occupations and technology. Also sample was eight textbooks subject matter  including Persian (read), Persian (writing), Science, Heavenly gift, Quran, Social Studies, Thinking and research and  Occupations and technology. The results showed that in elementary school textbooks reproduced out-of-home and income-based jobs for men and home-based job reproduced for women