The main purpose of present study was evaluating the curriculum of social sciences textbook at the first grade of the guidance school of Iranin compliance with Optimum Criteria of a good textbook. The population of this study included 120 of social sciences teachers at the first grade of the guidance school in Kerman city, the sample was equal to Population. The tool of gathering the data was a questionnaire which was made according to the National criteria of the textbook in Iran. The results showed that the most of the 20-fold criteria were confirmed. The ranking of the criteria showed that, the criterion of “relevance of the presented contents with everyday life” was the most confirmed and the criterion of “providing the opportunities for extracurricular activities out of class” was the least confirmed in the social science textbook.