A pallet transport system capable of detecting the completion of work of attaching a workpiece (W) to a pallet (PL) comprising: A transport device for transporting a pallet (PL) to which a workpiece (W) can be attached; a pallet housing unit for housing a pallet (PL), the pallet housing unit being one of destinations to which the pallet (PL) is to be transported by the transport device ; a workstation in which a worker (U) is to conduct work of attaching the workpiece (W) to the pallet (PL) transported from the pallet housing unit , the workstation being one of destinations to which the pallet (PL) is to be transported by the transport device ; a machine tool for machining the workpiece (W) attached to the pallet (PL) in the workstation , the machine tool being one of destinations to which the pallet (PL) is to be transported by the transport device ; and a control device for controlling the transport device , the work station including a button (BT) for accepting an operation indicating completion of the attachment work by the worker (U), wherein the control device is configured to: acquire an indicator indicating progress of the attachment work in the workstation , determine, regardless of whether or not the operation indicating completion has been accepted, whether or not the attachment work has been completed based on the indicator, and when it is determined that the attachment work has been completed, transport the pallet (PL) located in the workstation to the pallet housing unit or the machine tool . A transport device for transporting a pallet (PL) to which a workpiece (W) can be attached; a pallet housing unit for housing a pallet (PL), the pallet housing unit being one of destinations to which the pallet (PL) is to be transported by the transport device ; a workstation in which a worker (U) is to conduct work of attaching the workpiece (W) to the pallet (PL) transported from the pallet housing unit , the workstation being one of destinations to which the pallet (PL) is to be transported by the transport device ; a machine tool for machining the workpiece (W) attached to the pallet (PL) in the workstation , the machine tool being one of destinations to which the pallet (PL) is to be transported by the transport device ; and a control device for controlling the transport device , the work station including a button (BT) for accepting an operation indicating completion of the attachment work by the worker (U), wherein the control device is configured to: acquire an indicator indicating progress of the attachment work in the workstation , determine, regardless of whether or not the operation indicating completion has been accepted, whether or not the attachment work has been completed based on the indicator, and when it is determined that the attachment work has been completed, transport the pallet (PL) located in the workstation to the pallet housing unit or the machine tool . acquire an indicator indicating progress of the attachment work in the workstation , determine, regardless of whether or not the operation indicating completion has been accepted, whether or not the attachment work has been completed based on the indicator, and when it is determined that the attachment work has been completed, transport the pallet (PL) located in the workstation to the pallet housing unit or the machine tool . <EOS>