The purpose of this research was to find out the effects of the person and costume on the formation of first impression. 4 Models were choosen who had sporty, intellectual, social and cute impression. Tried on them sporty, intellectual, social and cute costumes, 16 pictures of them were taken four ty four method, and those were shown to 640 college girl students in Seoul to check the change of impression. The results are as follows : 1) The sporty costume to he perceived as sporty than either the social or intellectual and cute costume. 2) The social person to he perceived as social than either the sporty on intellectual and cute person. 3) The intellectual costume to be perceived as intellectual than either the sporty or social & cute costume. 4) The cute costume to be perceived as cute than either the sporty or social and intellectual costume.