To provide a subsurface exploration system or the like capable of easily executing work from the preparation of a subsurface exploration plan to the selection of a subsurface exploration company and further from the selection or the like of a foundation work to the selection of a foundation work company.

In this system connected with a user terminal through the Internet or the like, the system is provided with a means for making a user prepare the subsurface exploring plan on the user terminal, means for extracting an explorer, who can execute the prepared exploring plan, out of a database and reporting that explorer to the user on the terminal, means for selecting a specified exploration company out of reported exploration companies and ordering the exploration to that company, means for making the company prepare the explored result on an exploration company terminal, and means for making the user receive the explored result on the terminal.