To develop the bodice pattern of the master size of the established size chart which was suggested in the former studies, the wearing experiment was practiced. According to the result, developed pattern design in this study boys` bodily characteristics were reflected fully. And especially, New pattern design method was suggested at chest circumference, neck circumference, arm circumference, chest breadth, and center front line. The study results were put into the database in order to apply apparel CAD system, and they could be easily used in standardization work of design pattern.