The purpose of this study was to develop an Implicit Association Test to measure students' gender-biased attitude toward Home Economics, a required subject in middle-school and to examine the effects of gender, genderbiased attitude toward Home Economics, and gender egalitarianism on the perception of the subject. A total of 508 male and female middle-school students were surveyed using Qualtrics. The results revealed that the students had a gender-biased attitude of perceiving Home Economics as feminine as a whole, and this tendency was more evident among female than male students. To the contrary, their attitudes toward Home Economics as a subject was generally favorable when asked explicitly using self-administered questions. Among the high school elective classes, students preferred 'fashion' most, followed by 'dietary life', 'technology and home economics', and 'family life culture' . Female students, students with patriarchal attitude, and students who has gender-biased attitude