The main aims in the department of cosmetic of vocational high school were to cultivate beautician professionals. Further, the professional skill test of cosmetic was the primary content of course in the department of cosmetic of vocational high school. The purpose of the present study was to investigate the professional competence development adopting focus group interview of high school student. The results of this study provided some evidence to interpret the professional development regarding cosmetician training. Meanwhile, the implication of cosmetic profession education was discussed.