To provide a system for managing personal information of a mobile communication terminal, in which hastily required personal and business information can be immediately acquired by selecting required information by oneself, without the assistance of a third party or the like.

When there is a need to make contact with a specific person, during going out and during sales and marketing and if there is no information, such as the portable telephone number of the person or the required information at hand, required personal information can be obtained on a mobile communication terminal, by connecting to a server and a personal computer from the mobile communication terminal. The personal information is required to be converted to data, on the basis of calling cards and the other information. When it is troublesome to input individually, information read by a scanner is converted into character data and image data, and are stored. Characters or images are transmitted, in response to a call from the mobile communication terminal.