In　order　to　meet　the　needs　of　fashion　and　functional　design　in　women＇s　wear,　an　innovative　design　method　involving　a　mirror-image　structure　of　one-piece　raglan　sleeves　was　developed　by　means　of　reforming　the　traditional　raglan　sleeve　structure.　In　this　paper,　experimental　and　contrast　methods　were　used　to　study　the　setting　of　the　parameters　for　important　control　positions,　such　as　the　included　angle　of　the　sleeve　midline,　the　width　of　the　armhole　cavity　and　the　sleeve　width.　According　to　the　experimental　results,　compared　with　traditional　raglan　sleeves,　the　mirror-image　structure　of　one-piece　raglan　sleeves　obviously　reduces　the　difficulty　associated　with　the　sleeve-type　structure　design,　while　enhancing　the　stereo　shape　of　the　breasts　and　optimizing　the　raglan　sleeve　sewing　process　method.　Therefore,　these　sleeves　are　more　suitable　for　women＇s　wear　design　in　the　modern　fashion　era,　as　well　as　more　productive　when　using　the　template　method,　the　high-frequency　method　process　and　other　advanced　processes.　©　(2019)　Textile　Bioengineering　and　Informatics　Symposium　Proceedings　2019　-　12th　Textile　Bioengineering　and　Informatics　Symposium,　TBIS　2019.　All　rights　reserved.