SHOCK ABSORBER

A shock absorber includes a first oil flow path and a second oil flow path connected to a damper case and allowing oil to pass therethrough, a compression resistance unit including a resistance unit oil chamber, which is connected to the first oil flow path and allows the oil to flow thereinto when a rod is displaced in a compression direction, and a receiving member having one end facing the resistance unit oil chamber and the other end receiving an urging force of a spring, a reservoir tank connected to the second oil flow path and allowing the oil to flow thereinto, and a flow rate control unit provided on the second oil flow path and capable of controlling a flow rate of the oil flowing into the reservoir tank.