The present invention is a supporting back frame structure for supporting the back of the human body. It includes a back frame body, the back frame body includes a plurality of diamond-shaped supporting units, and each diamond-shaped supporting unit has two horizontal angles and two vertical angles. . Wherein, the two horizontal included angles are obtuse angles. With this structure, the supporting back frame structure of the present invention has good supporting force in the vertical direction, good stretching force in the left and right directions, and can be rolled to facilitate storage and carrying.本發明為一種支撐背架結構，用以支撐人體背部，其包括一背架本體，該背架本體包括複數菱形支撐單元，該每一菱形支撐單元具有兩個水平向夾角以及兩個垂直向夾角。其中，該兩個水平向夾角為鈍角。藉此結構，本發明支撐背架結構垂直方向具有良好的支撐力，左右方向具有良好的拉伸力，而可捲曲以利收藏與攜帶。
