A hydraulic damper comprising: a cylinder; oil that fills the cylinder in an encapsulated manner and that forms an oil chamber in the cylinder; a piston rod arranged to reciprocate in the oil chamber; a piston valve that is secured to a tip of the piston rod, that partitions the oil chamber into an upper oil chamber and a lower oil chamber, and that is arranged to reciprocate in sliding contact with the inner periphery of the cylinder by being accompanied by the reciprocation of the piston rod; an outer cylinder that surrounds the outer periphery of the cylinder; a reservoir chamber which occupies a space between an inner peripheral surface of the outer cylinder and an outer peripheral surface of the cylinder and in which oil and gas are encapsulated; a bottom stopper that seals a bottom portion of the outer cylinder from outside; a base valve that is held by the bottom stopper and that has a first compression side port and a second compression side port configured to bring the lower oil chamber and the reservoir chamber into communication; a first valve that is held by the base valve via a first spiral spring; a second spiral spring that is held by the first valve, that is set between the first valve and the piston valve, that is configured to generate downward repelling force when receiving a pressing force from the piston valve, and that is configured to close the first compression side port by pressing the first valve downwardly resisting a biasing force of the first spiral spring; a second valve that is disposed in a state that the second valve is passing through centers of the first valve and the base valve and that is arranged to adjust a flow rate of the oil with respect to the reservoir chamber when a pressure of the lower oil chamber of the cylinder becomes equal to or higher than a prescribed level because of an external load; characterized in that the hydraulic damper further comprises a third valve that is provided to a bottom portion of the first valve, that is sandwiched by a hole of the first valve through which hole the second valve passes and the outer periphery of the second valve, and that is configured to adjust a flow rate of the oil with respect to the reservoir chamber in accordance with a prescribed pressure of the lower oil chamber of the cylinder prior to the adjustment of the flow rate of the oil conducted by the second valve. a cylinder; oil that fills the cylinder in an encapsulated manner and that forms an oil chamber in the cylinder; a piston rod arranged to reciprocate in the oil chamber; a piston valve that is secured to a tip of the piston rod, that partitions the oil chamber into an upper oil chamber and a lower oil chamber, and that is arranged to reciprocate in sliding contact with the inner periphery of the cylinder by being accompanied by the reciprocation of the piston rod; an outer cylinder that surrounds the outer periphery of the cylinder; a reservoir chamber which occupies a space between an inner peripheral surface of the outer cylinder and an outer peripheral surface of the cylinder and in which oil and gas are encapsulated; a bottom stopper that seals a bottom portion of the outer cylinder from outside; a base valve that is held by the bottom stopper and that has a first compression side port and a second compression side port configured to bring the lower oil chamber and the reservoir chamber into communication; a first valve that is held by the base valve via a first spiral spring; a second spiral spring that is held by the first valve, that is set between the first valve and the piston valve, that is configured to generate downward repelling force when receiving a pressing force from the piston valve, and that is configured to close the first compression side port by pressing the first valve downwardly resisting a biasing force of the first spiral spring; a second valve that is disposed in a state that the second valve is passing through centers of the first valve and the base valve and that is arranged to adjust a flow rate of the oil with respect to the reservoir chamber when a pressure of the lower oil chamber of the cylinder becomes equal to or higher than a prescribed level because of an external load; characterized in that the hydraulic damper further comprises a third valve that is provided to a bottom portion of the first valve, that is sandwiched by a hole of the first valve through which hole the second valve passes and the outer periphery of the second valve, and that is configured to adjust a flow rate of the oil with respect to the reservoir chamber in accordance with a prescribed pressure of the lower oil chamber of the cylinder prior to the adjustment of the flow rate of the oil conducted by the second valve.