Abstract: Over the years few studies have been reported on the changing rule of seam puckers of fabrics,people usually depend on their experience for the control of seam puckers.For these reasons,a study of the properties and seam puckers at different directions of silk chiffon was undertaken.In this study,fabrics are cut and sewed separately in different directions at 10° interval from 0° to 360°,besides,45°,135°,225° and 315° directions are also considered.Properties of these samples are tested by FAST instrument,including bending rigidity,extensibility,cutting resistance and seam puckers(Sp) at different directions,and subjective evaluations on seam pucker are carried out in accordance with the related standard of AATCC.The regression equations between fabric mechanical properties and the evaluation on seam puckers at different directions are established,which may serve as a guide for designing fashion shape and apparel manufacturing.