A pallet transport system capable of detecting the completion of work of attaching a workpiece to a pallet comprising: A transport device for transporting a pallet to which a workpiece can be attached; a pallet housing unit for housing a pallet, the pallet housing unit being one of destinations to which the pallet is to be transported by the transport device; a workstation in which a worker is to conduct work of attaching the workpiece to the pallet transported from the pallet housing unit, the workstation being one of destinations to which the pallet is to be transported by the transport device; a machine tool for machining the workpiece attached to the pallet in the workstation, the machine tool being one of destinations to which the pallet is to be transported by the transport device; and a control device for controlling the transport device, the work station including a button for accepting an operation indicating completion of the attachment work by the worker, 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 located in the workstation to the pallet housing unit or the machine tool. A transport device for transporting a pallet to which a workpiece can be attached; a pallet housing unit for housing a pallet, the pallet housing unit being one of destinations to which the pallet is to be transported by the transport device; a workstation in which a worker is to conduct work of attaching the workpiece to the pallet transported from the pallet housing unit, the workstation being one of destinations to which the pallet is to be transported by the transport device; a machine tool for machining the workpiece attached to the pallet in the workstation, the machine tool being one of destinations to which the pallet is to be transported by the transport device; and a control device for controlling the transport device, the work station including a button for accepting an operation indicating completion of the attachment work by the worker, 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 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 located in the workstation to the pallet housing unit or the machine tool.