This creation relates to a wrist joint movement structure of a hand rehabilitation training device, including: a palm orthosis body, which is provided with a plurality of finger support rods and a thumb support rod； a forearm orthosis body； and a joint unit system As a universal joint, the joint unit is coupled between the palm orthopedic body and the forearm orthopedic body, and the palm orthopedic body is moved relative to the forearm orthopedic body by a movement of the joint unit. Angle to match the flexion of wrist joints of different users. A tension adjusting unit is provided with a plurality of elastic members, which are combined with the finger support rod and the thumb support rod. According to the stretching tension required by different fingers during rehabilitation, one end of the elastic member is different from the fixed seat. Fixed length to adjust different stretch tension.本創作係關於一種手部復健訓練器之腕關節作動結構，包含：一手掌矯具本體，係活動設有複數手指支撐桿及一姆指支撐桿；一前臂矯具本體；一關節單元係為萬向接頭，該關節單元係結合於該手掌矯具本體及該前臂矯具本體之間，藉由該關節單元之作動，使該手掌矯具本體相對於該前臂矯具本體限位移動一角度，以配合不同使用者手腕關節之彎曲程度使用。一拉力調整單元設有複數彈性件，以結合於手指支撐桿及姆指支撐桿，可根據不同的手指於復健時所需之伸展拉力，各別調整該彈性件之一端於固定座的不同固定長度，藉以調整不同的伸展拉力。
