Abstract: Disclosed are an elastic sole member which optimizes between a shock absorbing function and repulsive elastic force, between which a tradeoff relationship exists, and a shoe with the elastic sole member. The elastic sole member includes a sole body which is upwardly inclined toward a back end thereof, and an elastic member comprised of a fixing piece inserted through and fixed in a space formed through an upwardly inclined back portion of the sole body, and an elastic plate extending from the fixing plate while it is downwardly inclined and having a first end exposed to the outside and a second end spaced apart from the sole body, in which the elastic sole member elastically contracts when external force is applied to a back portion of the sole body while the fixing piece serves as the elastic support axis and provides elastic recovery force when the external force is removed.