The Linguistics Association of Korea Journal, 21(2), 163-192. School textbooks play a crucial role in educating gender roles;accordingly, the presence of gender discrimination in textbooks can influence adolescents to foster misconceptions about gender roles. This study examines the three popular middle school English textbooks in order to explore the existence of gender stereotypes in the textbooks based on the 7th National Educational Curriculum Revision (NECR) of Korea (2007). Compared to the results of previous researches based on the 7th National Educational Curriculum(NEC) of Korea(1999), this study suggests that gender stereotypes have been reduced not only in terms of the number of key expressions uttered by male and female characters but also the number of initiators of conversations, However, stereotypical gender roles still exist in the descriptions of male and female characters and the characteristics of gender roles have not been much changed. The findings of this research may serve textbook developers and curriculum designers with useful information for minimizing gender bias in English textbooks.