This study is aimed to be helpful a developing process for Apparel design and to investigate Idea abduction for Apparel Design which applied to the Morphological Method one of the Methods of Creativity which the creative technologists studied. The result of this study were as follows : 1. The Morphological Method which is one of the Methods of Creativity could be applied to Idea abduction for Apparel Design by CAD system. 2. This study developed a program for CAD system which could use the design process for Apparel Design applied to the Morphological Method 3. In the consequence of the program which could use the design developing process of Morphological Method, and trying to test with the selection of the essential variables about Jacket, Skirt, One-piece, Blouse, it is found that many design for Apparel Design could be producted in a short time, so that the conclusion have been made as a result that the Method could be a great help to design a variable sillouette for Apparel Design.