The purpose of this study is, as one of Jeju culture contents projects, to suggest a new method to develop the textile design using contents of Jeju Myth, Jacheongbi, in other words, to create mythic patterns by borrowing effectively from the mythic image of Jacheongbi on contemporary fashion. To achieve this, after extracting mythic contents from real animals from the myth (chicken, horse, cow and owl) of Jacheongbi, we draw the animal motifs from a mythic image basis of archetypal symbols and empirical awareness about animals and shamanistic imagination, and create mythic patterns. In order to achieve this design pattern, Adobe Photoshop CS5 Extended was used to design the animal motifs, and then they were arranged via bidirectional layout. And to conclude, development of the creative textile design using the mythic contents of Jacheongbi contribute to invigorating the fashion industry and regional culture contents projects in Jeju, and also become the basis of creating added value to it.