This study aims to discuss the image making of K-pop girl groups to provide an outlook on the necessary fashion components in order to express certain concepts by analyzing the fashion styles. The fashion styles of the representative girl groups from 2007 to 2011 were classified into five types: retro style, schoolgirl style, chic style, sporty style and marine style. The following are the features and elements of image making by style. The retro style pursued going back to the past. It used stripes, dots, leopard patterns, spangles and denim. It reproduced the style of the past to the trendy style using big sunglasses, retro makeup, girlish hair and gold wigs. The schoolgirl style created the sexy or cute image by using school uniforms as the motif including shirts, short pants and knee socks. It included having natural makeup and straight hair and differentiated colors, patterns and designs. The chic style was classified into rock chic look and sexy look. Both looks had common elements including smoky pop active makeup while the fashion concepts and hair styles were different. The sporty style took the concept of cheer girls. It used plaid shirts, baseball jackets, short pants, thigh high boots, vivid hair accessories, romantic makeup and straight, wave hair. The marine style took the naval uniform as the motif. It expressed the image using short pants, stripe patterns, wappens, naval caps and smoky sexy makeup, straight hair. K-pop girl group fashion is the driving force for the growth of Korean fashion industry as well as its cultural trends and hope that it have a growing influence on the global market and trend through continuing research and support.