An embodiment of the invention provides an automobile, a chassis and a suspension of the automobile. The suspension comprises two groups of suspension connecting rods, wherein the two groups of suspension connecting rods are applied to support connection between main support beams on two sides of a frame and wheels respectively; each group of suspension connecting rods at least comprise a first support connecting rod, a second support connecting rod, a third support connecting rod and a fourth support connecting rod, one end of each of the first support connecting rod, the second support connecting rod, the third support connecting rod and the fourth support connecting rod is rotationally connected with a hub shaft of the corresponding wheel, and the other ends are hinged with the corresponding main support beams of the frame respectively. With the adoption of a multi-connecting-rod structure for the suspension, the optimum location of a kingpin caster angle can be realized, front and back directive force from the road surface is greatly reduced, so that smoothness and comfort during accelerating and braking of the automobile are improved, and the stability of straight diving is also guaranteed.