Seam pucker means a phenomenon which appears along the seam line when two perces of fabric are sewn together by a sewing machine. It was found that among fabric mechanical properties, weight, extensibility bending rigidety, thickness and surface friction coefficient have relation to seam pucker. But it was difficult predict grade of seam pucker over all different types of fabric accurately by a multiple regression equation.However, it was found possible to predict commercial acceptability precisely of all fabric sewn under several sewing machine conditions, by discriminant analysis using only two variables. And this allows suggesting the proper sewing machine conditions for each fabric simply. Modification of textile mechanical properties and ironning were discussed for faric uncontrolled by adjusting sewing machine conditions. Futhermore seam pucker prediction in the designing stage was discussed.