This paper presents a new method for measuring fabric drape properties using computer vision. The major characteristics that represent drape property of fabrics are length, area, curvature, and roundness. To detect these characteristics, the image analysis is performed after image preprocessing, The Sobel operator is applied to preprocess the image, and the contour line of the image is extracted using the chain code algorithm. By experimental result, the roundness is most powerful factor to represent the drape property among the several characteristics.