To provide a data check program and a data check server which enable a equipment data generator to easily check equipment data with a client terminal by checking the consistency of equipment data on the client terminal through a network.

The data check server which is connected to the client terminal, where equipment data used in an equipment management system is stored, through the network to check the consistency of equipment data stored in the client terminal collects equipment data from the client terminal and stores this collected equipment data and refers to a specification storage means, where specifications of equipment data are stored, to check the equipment data and transmits the check result to the client terminal.