To realize a project ordering/order receiving system for matching an ordering enterprise which wants to find out an enterprise which makes a contract for a project by a project unit with an order receiving enterprise which wants to make a contract for a specific project by using a communication network such as the Internet.

This project ordering/order receiving system 10 is provided with a project information database 38 in which project information such as the attributes or budgets of projects is stored so as to be associated with each other for each of the projects of an ordering enterprise, an order receiving enterprise information database 40 in which attribute information such as the designation and address of the order receiving enterprise is registered and an order receiving enterprise information processing part 28 for extracting order receiving enterprise information matched with retrieval conditions from an order receiving enterprise information database 40 at the time of receiving the transmission of retrieval conditions related with the order receiving enterprise information from a personal computer 12 of the order receiving enterprise, and for transmitting the extracted order receiving enterprise information to the personal computer 12 of the ordering enterprise.