To provide a posture correction tool that can reduce discomfort given to a user, by preventing the occurrence of wrinkles of garments and the bite of a shoulder belt in the front side of a user's body.SOLUTION: A posture correction tool 10 includes: two shoulder belts 1 to which base ends are connected; an adjustment band 2 connected to tips of the shoulder belts 1; and an insertion member 3 connected to connecting portions of the shoulder belts 1 and having the adjustment band 2 inserted thereto. The shoulder belt 1 is constituted of a stretchable elastic material part 1b and a non-stretchable non-elastic material part 1a arranged in the tip side. A locked part 1f capable of locking a locking part 2f is provided on an outer face of the non-elastic material part 1a. The insertion member 3 is arranged in a user's back. The shoulder belts 1, 1 are wound forward from an upper part of user's both shoulders. The adjustment band 2 is inserted into the insertion member 3. The locking part 2f is locked in the locked part 1f while the adjustment band 2 is drawn out on both right and left sides, and thereby the user's both shoulders are displaced backward.SELECTED DRAWING: Figure 2【課題】使用者の体の前側における衣服のしわの発生や肩ベルトの食い込みを抑制することにより、使用者に与える不快感を低減させることのできる姿勢矯正具を提供する。【解決手段】姿勢矯正具10は、基端が連結された二本の肩ベルト1と、肩ベルト1の先端に連結された調節帯2と、肩ベルト1の連結部分に連結され、調節帯2が挿通される挿通部材3と、を備え、肩ベルト1は、伸縮可能な弾性素材部1bと先端側に配置された伸縮不能な非弾性素材部1aとで構成され、非弾性素材部1aの外面には、係止部2fを係止可能な被係止部1fが設けられ、挿通部材3が使用者の後背部に配置され、肩ベルト1・1が使用者の両肩の上方から前方に巻回され、調節帯2が挿通部材3に挿通され、調節帯2が左右両側に引張られた状態で、係止部2fが被係止部1fに係止されることにより、使用者の両肩が後方に変位される。【選択図】図2