To provide a back stretcher capable of stretching the back muscles and correcting posture while smoothly sending daily life.SOLUTION: The back stretcher is provided in a stick form so as to extend vertically in contact with three points of the back head part, back and buttocks along the back from the back of the users back, so that the back muscles are extended A pair of shoulder hanging members 2 mounted on the midway portion of the rodlike backing member and hung on the shoulder in the form of a loop to carry the bar shaped backing member on the back, and a rod shaped backing member is used A belt member 3 attached to the rod-like backing member directly or via a shoulder hanger member so as to press against the back and buttocks of the person.(FIG.【課題】日常生活を円滑に送りながらも、背筋を伸ばして姿勢を矯正できる背筋伸ばし器を提供する。【解決手段】棒状に設けられ、使用者の後頭部から背中に沿わせて、後頭部、背中及び臀部の3点で接触した状態に上下に延びるように配されることで背筋が伸びた状態となるように補助する棒状背当て部材1と、棒状背当て部材の中途部に装着され、棒状背当て部材を背負うためにループ状に肩に掛けられる一対の肩掛け部材2と、棒状背当て部材を使用者の背中及び臀部に押し当てるように、棒状背当て部材に直接的又は肩掛け部材を介して装着されたベルト部材3を備える。【選択図】図2