The purpose of this study was to develop a basic slacks pattern drafting me- thod for pregnant women on the basic of their physicial characteristics. The results of the study were as follows: 1. The items which showed a remakable and significant increase were anterior waist height, waist depth, omphalion depth, abdominal depth, waist girth, omphalion girth, abdominal girth and body weight. The anterior part of waist and abdominal sections projected forward gradually, so remarkably as to become to look like a circle, at ten month. 2. Sensory evaluation for Appearance: According to the statistical analysis of the result of 25 items on the questionnaire, all the items showed significant difference$({alpha}{leq} 0.001)$ between the new and the MUNHWA method slacks pattern, with the new pattern having having higher scores. 3. Sensory evaluation for Comfort : The new drafting method proved to be better fitted and more comfortable.