The aim of this study is to develop new wedding dress designs by blending the traditional female Korean upper garment of Han-bok, known as dang-ui, with Western-style wedding dress designs. For this research, the author considered the various types of wedding dresses and their historical development based on literary resources and previous studies of the subject. The results are as follows: first, this study featured the use of different types of fabric for the dang-ui, selected from the various fabrics available for wedding dresses. Starting from the basic design of a sleeveless and strapless princess-line tight top, three different styles of A-line dresses were created: a tiered long dress, an unbalanced tiered midi dress, and a spangled and pleated mini dress. The study also resulted in a tight H-line mini dress with a bustle. In this way, the author was able to suggest new wedding dress styles that are well suited to the cultural trend of the Korean wave. Second, the traditional Korean dang-ui is an elegant ceremonial garment that harmonizes well with Western-style wedding dresses. Satisfaction can be found from combining these creative fusion gowns with traditional Korean aesthetics. Third, the traditional Korean ceremonial coronet jokduri and veil, which go well with dang-ui wedding dresses, are suitable accessories for contemporary wedding dresses. The dang-ui wedding dress, a result of merging the Korean dang-ui and the Western style, will help enhance business for both the Korean and the international wedding industry thanks to an aesthetic that has global appeal.