Disclosed are a joint protection apparatus and a control method thereof. The joint protection apparatus includes a support unit, to which different support frames are coupled via a hinge, a fastening adjustment unit coupled to the support unit to provide fastening force required to fasten the support unit to a human body, a sensing unit configured to sense motion of the different support frames, and a controller configured to decide a motion region in which the motion sensed by the sensing unit is included and to decide the fastening force of the decided motion region.