A torsional shock absorbing apparatus comprising: a first rotation member having spring accommodating windows formed therein, a second rotation member (16, 17) disposed in coaxially rotatable relationship with the first rotation member and having spring accommodating portions (20, 21) positioned in face-to-face relationship with the first rotation member, springs partly disposed in the spring accommodating windows and the spring accommodating portions (20, 21) and compressed in response to the positive and negative torsional movements of the first rotation member with respect to the second rotation member (16, 17) to have the torque transmitted between the first rotation member and the second rotation member (16, 17), a first seat member and a second seat member respectively disposed between the circumferentially end portions of the springs and the circumferentially end portions of the spring accommodating windows and the spring accommodating portions (20, 21), for supporting circumferentially end surfaces of the springs respectively, the first seat member having an outer peripheral portion movable along the spring accommodating portion (20, 21) of the second rotation member (16, 17) in response to the positive torsional movement of the first rotation member with respect to the second rotation member (16, 17), and the second seat member having an outer peripheral portion movable along the spring accommodating portion of the second rotation member (16, 17) in response to the negative torsional movement of the first rotation member with respect to the second rotation member (16, 17), the first seat member and the spring accommodating portion (20, 21) have a sliding resistance to be generated therebetween, and the second seat member and the spring accommodating portion (20, 21) have a sliding resistance to be generated therebetween, characterised in that the sliding resistance of the first seat member and the spring accommodating portion (20, 21) being larger than the sliding resistance of the second seat member and the spring accommodating portion (20, 21). a first rotation member having spring accommodating windows formed therein, a second rotation member (16, 17) disposed in coaxially rotatable relationship with the first rotation member and having spring accommodating portions (20, 21) positioned in face-to-face relationship with the first rotation member, springs partly disposed in the spring accommodating windows and the spring accommodating portions (20, 21) and compressed in response to the positive and negative torsional movements of the first rotation member with respect to the second rotation member (16, 17) to have the torque transmitted between the first rotation member and the second rotation member (16, 17), a first seat member and a second seat member respectively disposed between the circumferentially end portions of the springs and the circumferentially end portions of the spring accommodating windows and the spring accommodating portions (20, 21), for supporting circumferentially end surfaces of the springs respectively, the first seat member having an outer peripheral portion movable along the spring accommodating portion (20, 21) of the second rotation member (16, 17) in response to the positive torsional movement of the first rotation member with respect to the second rotation member (16, 17), and the second seat member having an outer peripheral portion movable along the spring accommodating portion of the second rotation member (16, 17) in response to the negative torsional movement of the first rotation member with respect to the second rotation member (16, 17), the first seat member and the spring accommodating portion (20, 21) have a sliding resistance to be generated therebetween, and the second seat member and the spring accommodating portion (20, 21) have a sliding resistance to be generated therebetween, characterised in that the sliding resistance of the first seat member and the spring accommodating portion (20, 21) being larger than the sliding resistance of the second seat member and the spring accommodating portion (20, 21).