Every single company in the world makes a huge amount of effort so as to not only cut down the physical distribution cost but promote the efficiency. In the government's respect, especially, they expect to maximize the synergy by unifying the physical distribution. For that reason, it relevant for all kinds of a distribution strategy to get rid of unnecessary distribution centers and to integrate distribution centers by unifying and rearranging the distribution centers that are hardly efficient. Most enterprises in Japan, related to making and distributive, have got a tendency to decentralize their distribution centers in a wide scope of the whole nation. In the meantime, they seem to get a move to become a great-sphere distribution center. Many similar cases in Korea, Koon-Po distribution center, Yong-In distribution center, are not expected to function properly. With a rate of trading products expanded, a new strategic physical distribution is needed to turn the way of depending on building up a new distribution center into the way of unifying and rearranging a distribution center. Therefore, this study aims to identify the optimal method of unifying and rearranging a distribution center, compared to the cost which takes place in a large number of distribution centers.