This study analyzed silhouette expressions in the fashion illustrations by theory based on results of studying the characteristics of the forms and meanings of the silhouette expressions in art historically. For the actual considering this study collected and categorized fashion illustrations from 1990 to the present limitedly, and clarified the meaning of the silhouette expressions. Those expressions in fashion illustrations were categorized to the 5 items; black & white silhouette, color silhoutte, pattern silhouette, paper silhouette, line silhouette. Silhouette expressions of the fashion illustrations were categorized to 3 items: metaphorical fantasy, essential minimization, anonymous representation.