To provide a parking lot management system capable of easily providing information such as emergency information, management related information or using state information for a small-scale parking lot under private management.

In this management system for one or more parking lot facilities, information such as emergency information, management related information, or using state information in the parking lot concerned is reported to a management computer located out of the parking lot facility through a communication line such as public line, private line or satellite line. According to the reported content, delivery/non-delivery and a delivery designation are automatically selected by an automatic selection means. The automatic selection is performed according to levels preliminarily classified for information. Specific information is obtained by an owner's instruction.