A kind of adjustable wheelchair frame group includes that interval one first and second side wheel frame of setting and one are horizontally arranged between what the first and second side wheel frame and support bar unit including the X-shaped of one first and second support rod and one first and second connector. Hou interval and what the first side wheel frame is rotatably coupled before the front end of the first support bar and the Hou end of first connector. Hou interval and it is rotatably coupled what second side wheel carrier before the front end of the second support bar and the Hou end of second connector, and the front end of the second support bar and the Hou end of second connector are respectively with respect to the front end of the what first support bar and the Hou end of first connector. First and second support rod is mutually articulated in X-shaped, and the front end of first and second connector is pivotally connected the Hou end of what first and second support rod respectively.一種可調整的輪椅車架組包含間隔設置一第一、二側輪架，及一水平地設置於該第一、二側輪架間且包括一第一、二支撐桿及一第一、二連接件的X形支撐桿單元。該第一支撐桿的前端部及該第一連接件的後端部前後間隔且可轉動地連接於該第一側輪架。該第二支撐桿的前端部及該第二連接件的後端部前後間隔且可轉動地連接於該第二側輪架，且該第二支撐桿的前端部及該第二連接件的後端部分別相對於該第一支撐桿的前端部及該第一連接件的後端部。該第一、二支撐桿呈X形相互樞接在一起，且該第一、二連接件的前端部分別樞接於該第一、二支撐桿的後端部。
