To allow a directory distribution management device to distribute directories mutually between a plurality of directory sites.

The directory distribution management device is provided with a price table 14 for storing respective selling prices of a plurality of directories, a trade correspondence table 16 for storing a record of trade at each time of trade of a directory, a master selling part 11 for recording a sale record in the trade correspondence table 16 at the time of selling a directory, a difference calculation part 13 for obtaining a difference between a directory being a purchase object and the directory at the time of sale, on the basis of the trade correspondence table 16, and a master purchase part 12 for purchasing the obtained difference by the selling price of the directory in the price table 14 and recording the record in the trade correspondence table 16.