To provide a method for controlling use in a closed area for effectively improving security of a resident in the closed area and service to the resident by facilitating an operation.

When a person having a permission to use the closed area enters or exits the closed area S, primary identification is applied to the person based on the person's unique identification information such as biological information. When the person enters or exits a region A, secondary identification is further applied to the person based on sub-identification information having an identification level lower than the unique identification information. With the strict primary identification and the loose primary identification, an unauthorized person is effectively rejected, thereby providing a smooth and accurate service to the person having the real permission to use the closed area.