Abstract: On the basis of summarizing the relief measures like building Normal Storehouse and Social Storehouse, Ming Taizu established the preparatory storehouse policy, which constructed the important storage system against disasters. The establishment of such storehouse, on one hand, helped to solve the problem as the long-distance transportation of food, which could avoid the hard work of transporting, reduce the consumption, provide the convenience of relief in the neighborhood and maintain the lives of victims of disasters. On the other hand, such establishment created conditions for the relief preceding report system. This would avoid the delaying of relief time because of long process of report, examination and relieving measures, which speeded up the relief process. Moreover, such measures prevented the fact that people could find refugees flooding everywhere and bodies dead of famines from time to time. This provided the guarantee to consolidate the Ming power and became an important storage relief system of Ming Dynasty