The invention discloses a liner torsion rigidity measurement method for automobile suspensions, comprising the steps of: a, fixing a test clamp (1); b, fixing and pressing a liner (4) into the test clamp (5); c, mounting and fixing a torsion bar (2) into the center hole of the liner (4); d, fixing a force measurement steering wheel (1) and the torsion bar (2); e, fixing one end of a strain piece (3) on the force measurement steering wheel (1) and fixing the another end on the test clamp (5); f, connecting the force measurement steering wheel (1) with a computer; g, rotating the force measurement steering wheel (5) to transmit data to the computer; h, using the computer to receive the data transmitted from the force measurement steering wheel (5) and automatically generating a rigidity curve. The invention utilizes the general testers of automobile enterprises and can utilize a simple combination to simply and accurately measure the torsion rigidity of a liner, thereby reducing test cost and improving test speed, with simple measurement method and simple operation.