Abstract: Embodiments of the present invention provide a workpiece transportation control method and system that automatically processes a plurality of steps in a successive manner, thereby enhancing production efficiency. According to one embodiment, a transportation control method includes the steps of: monitoring the state of an automated manufacturing system to see if there is a request for transporting a workpiece; extracting the subsequent step path for the workpiece when a transportation request is issued; calculating a standard necessary period along the extracted step path; converting the subsequent standard necessary period into an evaluation value, issuing a transportation request, stacking tasks in response to other transportation requests; and selecting a workpiece with the shortest subsequent standard necessary period from the stacked transportation requests.