This paper examines the discourses on women found in the secondary education textbook for women during the period of Japanese colonial aggression and investigates whether these discourses on women would change through time. In the early secondary education national language textbooks for girls, a dominant discourse was “a woman becomes a good wife and a mother who fulfills her duties (hyeonmoyangcheo).” Such a discourse continued until the 1920s along with the emergence of women who embraced Confucian adaptation as a norm. On the other hand, awareness of women's human rights increased with a discourse of “working women, women engaged in economic activities” with time. Nevertheless, the dominant discourses on women such as theory on ladies or theory on women consisted of what values and ideals society and the state want in women. In Korean textbooks, an image of “new women” who is independent, educated, and in charge of economic activities was introduced and such a discourse continued with time. The morality textbooks demanded the duties and responsibilities of women and presented the image of women who will dedicate themselves to the education to become hyeonmoyangcheo and the social responsibilities and development. Later on, they presented a strong image of women who adapt to the changing time, accumulates talents and knowledge, and maintain the happiness of their family. In addition, the image of women itself changed with time.