The invention relates to an automobile suspension device, in particular to a torsion bar type automobile suspension device which comprises a front torsion bar spring installed on an automobile front suspension. The torsion bar type automobile suspension device is characterized in that a rear torsion bar spring is installed on an automobile rear suspension, and the opposite ends of the front and rear torsion bar springs at the same side are connected with each other by a connecting mechanism and are connected with a carriage by a locating device. Because of the connecting mechanism arranged between the front and rear torsion bar springs at the same side, a linkage relationship is established between the front and rear torsion bar springs at the same side, so that the vibration of the automobile in the process of running on an uneven road can be effectively improved, and simultaneously the carriage and the body frame can not be affected by the torsion, thereby prolonging the service life of the automobile.