The purpose of this research is to industrialize and to localize traditional culture resources of Andong by developing festival costumes related to 'Andong Mask Dance Festival'. We tried several methods to deliver meanings and images of festival costumes, as followings. Frist, from April, 2009 to October, 2012, we created the new design of the festival costumes after consulting with 7 festival experts about the conditions and characteristics of 'Andong Mask Dance Festival'. The festival costume design is characterized by the detachable parts of clothing based on Han-bok style, the front and back of bodice, right and left side of both sleeves, and pockets, which can be tied up with strings. Therefore the consumers can choose and attach the part they want. Secondly, the newly created festival costumes were evaluated appropriately to the consumer's satisfaction, implementation, practicality, and long-term development possibility according to the survey of 85 participants who were, in fact, wearing the festival costumes in the festival. The results are as follows: Frist, festival costumes are based on Korean traditional costumes, and it appears wearing object as festival costumes. Secondly, traditional beauty and modern beauty are well matched up, so men and women of all ages are possible to wear. Thirdly, size of costume can be controlled, so it's easy to wear. Finally, construction method is very simple. The possibility of long-term development by various material development is needed.