A target transporting device includes a pair of transport rollers that applies a transport force to a continuous-form sheet toward a downstream side from an upstream side while pinching the continuous-form sheet; a guide member that applies a tension force to the continuous-form sheet being pinched by the pair of transport rollers toward the upstream side in a transport direction of the continuous-form sheet; and an image capturing unit that is disposed at a location upstream of the pair of transport rollers on a transport path of the continuous-form sheet so as to detect a transport amount of the continuous-form sheet to which the tension force is being applied by the guide member without contact.