Abstract: A hair-weaving machine includes two endwise juxtaposed threaded shafts having a gap formed therebetween and two arms provided with grippers which may be rotated in a clockwise and anticlockwise directions around the shafts, respectively. As the arms are slowly advanced in the same directions longitudinally along the respective shafts, one arm with its gripper pushes a needle-attached thread through an endportion of a hairpiece and past a strand of hairs, while the other arm and its associated gripper grips the needle after the latter has been pushed through the endportion of the hairpiece and past the strand of hairs, and returns the needle and its associated thread subsequently to the first arm. The next action of the first gripper arm results in a complete loop being formed around the hairpiece endportion and the strand of natural hairs, subsequent loops being formed as the arms are advanced longitudinally along the respective shafts.