To provide a self-traveling carriage capable of passing over a relatively large level difference even if using a low-output actuator.

The self-traveling carriage includes: a self-traveling carriage body: the actuator which is provided at the self-traveling carriage body to generate rotational power; a main drive wheel which is provided in such a way that power transmission by the actuator is made possible and supports the self-traveling carriage body; an auxiliary drive wheel whose mutual axial direction becomes parallel to the main drive wheel and which is arranged in such a way that a grounding part is positioned at the upper side from the main drive wheel; and a transmission mechanism which connects the main drive wheel and the auxiliary wheel in such a way that power transmission is made possible.