A garment folding machine includes: a frame unit defining an external framework of the garment folding machine, a loading unit configured to receive a garment, a folding unit configured to convey and fold the received garment, and an unloading unit configured to collect the garment from the folding unit. The folding unit comprises a plurality of folding layers that are spaced apart from each other in a vertical direction, where each of the plurality of folding layers includes a conveyor configured to convey the garment, and a conveyor motor configured to provide driving power to the conveyor. A first conveyor motor is configured to, based on the garment being positioned over two or more adjacent conveyors of the plurality of folding layers, operate at a first rotational speed that is different from a second rotational speed of a second conveyor motor disposed above the first conveyor motor.