The invention relates to a wearable upper arm man-machine aid. Primarily, each of two sides of a main body is pivotally connected to a first end of an arm assembly respectively, and a second end of the arm assembly is pivotally connected to a connection plate. Furthermore, a support plate is adjacent to the connection plate, and the connection plate is connected to the support plate by an electromagnetic braking unit. Thereby, when a worker wears the invention on he/her body and fixes he/her upper arm to the support plate, and then adjusts the angle required for the upper arm operation, the electromagnetic braking unit can be supplied with power to fix the position of the support plate. Accordingly, under the auxiliary support of the invention, the worker can easily maintain he/her arm in the required elevated state for a long time without feeling tired, so as to effectively improve the work efficiency and the like.本發明係有關於一種穿戴式上臂人機輔具，係主要於本體二側分別樞接有一支臂組首端，並使該支臂組末端樞接有一結合板，又於相鄰該結合板處設有一支撐板，且使該結合板與支撐板間以一電磁制動單元相連結，藉此，當工作人員將本發明穿戴於身上，並將其上臂固定於支撐板，再調整其上臂作業所需角度後，即可供電予電磁制動單元，以使電磁制動單元固定該支撐板位置，據此，在本發明的輔助支撐下，工作人員便可輕鬆地將其手臂長時間維持在所需抬高狀態，而不會感到疲累，以達到有效提高作業效率等效益。
