“Michinoeki” has basic function of rest, information dissemination and regional promotion. But, disaster relief operation is attracting attention as a new function. In this research, I classified the disaster relief functions of “Michinoeki”, and considered them based on actual lage-scale natural disasters with the surrounding conditions. As a result, disaster relief functions can be described by their content and extent. And the specific “Michinoeki’s” function depends on the access condition and surrounding environment.