Automobile chassis life test device

The invention provides an automobile chassis life test device, which comprises a test bench, a front protection plate and impact strength sensors, wherein a front block is fixedly connected at the place which is flush with the left side wall of the test bench; the front protection plate with semicircular inner arcs at two ends is arranged on the front block close to the test bench; and the middlepart of the outer end of the front block is fixedly provided with a row of impact strength sensors. Due to setting of a modeling tray and rolling columns, the horizontal plane of the test bench is exposed at 1/3 of the rolling column, the uplifts on the modeling tray are just distributed in gaps between the rolling columns and the depth of the modeling tray is twice the diameter of the rolling column, and thus, when the rolling columns protrudes on the modeling tray, a more rough simulated road surface can be made, comparison of chassis wear parameters on a road surface in a pure rolling stateand a road surface with t