Textbook is one of the main elements for conveying messages in the process of education. and, having rich content is an important tool for achieving social and ethics-oriented citizens. The purpose of this study is to determine the frequency and importance of ethics components, in social studies textbooks. The research method is a content analysis and the unit of analysis is sentences and pictures. The statistical population is all social education textbooks for fifth to ninth grades in the academic year 2019-2020, in which the whole community was considered as a sample. The research tool is a researcher-made checklist and MAXQDA software. The component of ethics was examined based on existing theories with 10 sub-components. After determining the frequency of indicators, the statistical method "Chi-square and Shannon entropy" was used. The results showed that the highest frequency observed in the ethics component is related to the sixth grade with 488 cases, the second rank belongs to the fifth grade with 359 cases. The third rank is assigned to the seventh grade with 342 cases, the fourth rank to the ninth grade with 232 cases and the last rank to the seventh grade with 198 cases. The results of chi-square test confirmed significant differences in frequencies. Also, the results of Shannon entropy analysis showed that the highest coefficient of importance is related to the component of godliness and religiosity with a coefficient of importance of 0.81 and the lowest coefficient of importance is related to the component of no fault finding and absence with a significance coefficient of 0.048. Based on the findings, attention to the issue of ethics in The fifth and sixth grades are more than the seventh to ninth grades, and in general, little attention has been paid to the components of fidelity, honesty and absenteeism in textbooks. Manuscript profile