The purpose of this article was to analyse gender biases from the wider range of gender discussion written in Arabic textbooks Al-Asas volumes 1, 2 and 3, published by Sinan Al-Alamiyyah in Sudan. This research employed a qualitative approach with the implementation of critical discourse analysis (CDA). The results showed that unjust descriptions of female characters usually appear in textbooks: pictures of women as second-class and illustrations of gender bias. The pictures were always dominant among members of the community. Furthermore, (...) there were also positive images showing the position of women among men and women having the same rights. The findings theoretically highlighted the implementation of CDA to analyse the content of Arabic textbooks for non-Arabic speakers. As a practical implication, both readers and the users, either native or non-native Arabic speakers, could avoid the nurturance of gender biases in their social lives. The main conclusion would be that the users of the textbooks can consequently identify gender bias in the textbooks. Contribution: Through the findings of positive images on the position of women within society and women’s equality rights, it is hoped that this research would become a medium of increasing social awareness about the importance of achieving gender equality. The application of the study should include the improvement of the textbooks specifically referring to gender biases that would influence users of the textbooks in different countries. (shrink)