To improve customer's satisfaction to the provision of visiting service and to cooperate with public welfare.

This mobile visiting service comprises an in-vehicle communication terminal 21 loaded on a mobile sales wagon 2, having an information processing function and connected to the Internet 4, and a registered communication terminal 3 of a registered user communicating with the in-vehicle communication terminal 21 through the Internet 4. The in-vehicle communication terminal 21 calls the registered communication terminal 3 located in a sales area to distribute the sales information, when the mobile sales wagon 2 reaches the neighborhood of the sales area, and receives the order information to the sales information. Further the in-vehicle communication terminal 21 collects and records the sales information of commodities on the basis of the order information at a sales hub. The Internet may be the ordinary communication network, and the in-vehicle communication terminal 21 and the registered communication terminal 3 can call each other to exchange the information.