This creation system discloses a kind of adjusting type back frame structure improvement comprising； One backrest group, a set of liner group covered in what backrest group and one constrain backrest group and around the set of constraints for enclosing user； By the composition of above-mentioned component, backrest group is adjusted can according to user's figure to attach, attaching state of the fiting constraint group to maintain backrest group proper, ensure that the back frame structure of this creation can be attached according to the figure because of different users, and the effect of support and stance adjustment is effectively played, avoid the sense of discomfort in user's dress.本創作係揭露一種調整型背架結構改良，其包括；一背架組、一套覆於背架組上之襯片組、以及一約束背架組並繞圍使用者之約束組；藉由上述構件之組成，使背架組可依使用者身形調整貼附，配合約束組以維持背架組妥適之貼附狀態，確保本創作之背架結構能依因不同使用者之身形貼附，而有效的發揮支撐與姿勢調整的效果，避免使用者穿著上的不適感。
