A method and a device for displaying clothing patterns determine attributes of bounding volumes for each body part, to which a body type and an orientation of a 3D avatar are reflected, based on locations of feature points extracted from data of the 3D avatar, determine initial locations of the clothing patterns by placing arrangement points on the bounding volumes depending on the attributes of the bounding volumes for each body part, and drape the clothing patterns to the 3D avatar depending on the initial locations.