A suspension device for a vehicle, comprising: a knuckle configured to support a wheel of the vehicle; a lower arm configured to connect the knuckle to a vehicle body of the vehicle; a tie rod configured to connect the knuckle to a steering system; a damper having an upper end connected to the vehicle body and a lower end connected to the knuckle, the damper being capable of extending and retracting in an axial direction of the damper; a pair of upper and lower spring supporters (46, 50) mounted on the damper such that a distance from each other is changed in the axial direction of the damper according to the extending and retracting of the damper; and a coil spring disposed between the pair of upper and lower spring supporters (46, 50), wherein of a connecting portion (23, 24) of the lower arm for connection to the knuckle and a connecting portion (23, 24) of the tie rod for connection to the knuckle, one of the connecting portions (23, 24) which is close to a rear of the vehicle is offset inward in a vehicle width direction with respect to the other connecting portion which is close to a front of the vehicle, in a steering neutral state, a center of a lower end portion of the coil spring is offset outward in the vehicle width direction and rearward in a vehicle's longitudinal direction with respect to a center of an upper end portion of the coil spring, a strut comprised of the damper and the coil spring is mounted on each of wheels on right and left sides of the vehicle, offset amounts of the center of the lower end portion of the coil spring with respect to the center of the upper end portion of the coil spring in the vehicle width direction and in the vehicle's longitudinal direction are the same between the struts on the right and left sides of the vehicle body, and characterized in that: an offset amount of a lower end of the coil spring with respect to the axis of the damper in the vehicle's longitudinal direction differs between the struts on the right and left sides of the vehicle body, at a vertical position of the lower end of the coil spring in the vertical direction of the vehicle. a knuckle configured to support a wheel of the vehicle; a lower arm configured to connect the knuckle to a vehicle body of the vehicle; a tie rod configured to connect the knuckle to a steering system; a damper having an upper end connected to the vehicle body and a lower end connected to the knuckle, the damper being capable of extending and retracting in an axial direction of the damper; a pair of upper and lower spring supporters (46, 50) mounted on the damper such that a distance from each other is changed in the axial direction of the damper according to the extending and retracting of the damper; and a coil spring disposed between the pair of upper and lower spring supporters (46, 50), of a connecting portion (23, 24) of the lower arm for connection to the knuckle and a connecting portion (23, 24) of the tie rod for connection to the knuckle, one of the connecting portions (23, 24) which is close to a rear of the vehicle is offset inward in a vehicle width direction with respect to the other connecting portion which is close to a front of the vehicle, in a steering neutral state, a center of a lower end portion of the coil spring is offset outward in the vehicle width direction and rearward in a vehicle's longitudinal direction with respect to a center of an upper end portion of the coil spring, a strut comprised of the damper and the coil spring is mounted on each of wheels on right and left sides of the vehicle, offset amounts of the center of the lower end portion of the coil spring with respect to the center of the upper end portion of the coil spring in the vehicle width direction and in the vehicle's longitudinal direction are the same between the struts on the right and left sides of the vehicle body, and characterized in that: an offset amount of a lower end of the coil spring with respect to the axis of the damper in the vehicle's longitudinal direction differs between the struts on the right and left sides of the vehicle body, at a vertical position of the lower end of the coil spring in the vertical direction of the vehicle.