A flexible substrate storage equipment of the present invention includes at least a pair of opposed members that constitute an outer frame of a storage equipment main body, wherein the pair of opposed members are disposed so as to maintain a predetermined interval to wedge a plurality of flexible substrates in between to hold them in a shape of a curve. As a result, a flexible substrate storage equipment for surely storing and holding a plastic substrate or other flexible substrate with a simple structure, and a storing method of such substrate can be realized.