To allow a plurality of information transmitters to send information data that are divided to a portable terminal.

A network 4 interconnects an information storage device 11, a server unit 12, and a plurality of the information transmitters 21. A storage area 13 of the server unit 12 stores a user ID, designation information C and a distribution location A. The server unit 12 reads information data D corresponding to the designation information C from the information storage device 11 and distributes division data Dx to each information transmitter 21 with the user ID. When the user ID of a mobile phone 1 is coincident with the user ID stored in the storage area 13, each information transmitter 21 transmits the division data Dx to the mobile phone 1. As a result, the mobile phone 1 can store even a large amount of the information data D.