The invention relates to a driving module and motion assistance apparatus including the driving module. The driving module comprising a driving source configured to transmit power； an input side rotary body connected to the driving source and configured to rotate； and a first decelerator and a second decelerator configured to operate using the power received from the driving source through the input side rotary body, wherein at least one of the first decelerator and the second decelerator comprises a planet gear connected to an outer circumferential surface of the input side rotary body and configured to rotate with respect to an axis of rotation thereof and/or revolve around the input side rotary body using the power received through the input side rotary body； a carrier connected to the axis of rotation of the planet gear and configured to rotate when the planet gear revolves around the input side rotary body； a ring gear including an inner circumferential surface, the inner circumferential surface configured to be connected to the planet gear； and a pulley configured to act as an output terminal of the at least one of the first decelerator and the second decelerator, the pulley including an outer circumferential surface for winding a power transmitting member configured to transmit the power from the input side rotary body to another member connected to the driving module over said surface.
