Abstract: 7 kinds of jean and the puff sleeves made of these jean fabrics were tested respectively for their performance parameters,and mathematical statistics was used to investigate the influence of the performance of jean on the gathering quantity and integral shape of the puff sleeves.The results showed that in the case the factors affecting the gathering quantity and integral shape of the puff sleeves,fabric thickness is in the first place,and draping and weave density ranks the second.Thus,when using different kinds of jean to make puff sleeves,fabric thickness should be taken into consideration first for designing the amount of gathering and rising of puff sleeves,then the draping and weave density.Fabric thickness has positive influence to puff effect and firm stand of sleeves.