PROBLEM TO BE SOLVED: To provide an in-plant physical distribution area layout creation device and an in-plant physical distribution area layout creation method capable of efficiently, elaborately designing the layout of physical distribution areas in a plant.SOLUTION: An in-plant physical distribution area layout creation device for creating the layout of physical distribution areas in which components, products, or boxes storing the components or the products temporarily reside in a plant, identifies a magnitude of each physical distribution area based on a residence amount of the components, the products, or the boxes storing the components or the products residing in the physical distribution area calculated based on component information on the components or the products.
