PROBLEM TO BE SOLVED: To provide a manufacturing method of a supporter for hallux valgus, a supporter in which no joining member such as a seam comes into contact with the sole or the big toe to the little toe of a foot when the supporter is put on.SOLUTION: Single belt-like fabric is used which includes: an inlet-like notch 11; a restraining piece part forming region 13 and a foot inserting cylindrical part forming region 14 which are successively formed to one side of the inlet-like notch; a fixed belt part forming region 15 which is successively formed to the other side; and a nearly semicircular projection for forming a big toe inserting cylindrical part that is successively formed in a deep part. Then, the manufacturing method contains: a process in which the foot inserting cylindrical part forming region is folded in the direction of the restraining piece part forming region, with an end edge part joined to a position along a hanging line from a proximal part on the foot inserting cylindrical part forming region side of the nearly semicircular projection, thereby forming the restraining piece part; and a process in which, with roughly the center of the nearly semicircular projection as an axis of rotation, the fixed belt part forming region 15 is rotated once on the near side of the inlet-like notch, and in which a part along the hanging line from the proximal part on the fixed belt part forming region side of the nearly semicircular projection is joined to the end edge part joint of the foot inserting cylindrical part forming region, thereby forming the fixed belt part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】装着時、足裏や第1趾~第5趾に縫い目等の接合部材が触れることのない外反母趾用サポーターの製造方法の提供。【解決手段】入江状切欠部11と、入江状切欠部の一方の側に連成された止着片部形成用領域13及び足挿入筒状部形成用領域14と、他方の側に連成された固定ベルト部形成用領域15と、奥部に連成された親指挿入筒状部形成用略半円状突出部とを有する一枚裁ち帯状生地を用い、足挿入筒状部形成用領域を止着片部形成用領域方向に折り返し、端辺縁部を略半円状突出部の足挿入筒状部形成用領域側基部からの垂下線に沿う位置に接合し、止着片部を形成する工程、略半円状突出部の略中央を回転軸として固定ベルト部形成用領域15を入江状切欠部の手前側に1回転させ、略半円状突出部の固定ベルト部形成用領域側基部から