Instrument for testing strength of automobile body

The utility model discloses an instrument for testing the strength of an automobile body, and particularly relates to the technical field of automobile hardness detection, which comprises a support plate, a first operating platform is arranged above the support plate, a second operating platform is movably arranged in the first operating platform, two first fixing plates which are symmetrically distributed are fixedly arranged at two ends of the support plate, and two second fixing plates are fixedly arranged at two ends of the support plate. A sliding rail is fixed on the upper surface of the first fixing plate, a sliding block is arranged on the sliding rail in a sliding mode, a first testing plate is arranged above the sliding block, and a second testing plate is fixedly arranged on the portion, away from the first testing plate, of the first fixing plate; the first operation table can be put down when the air cylinder is closed, so that the first operation table is separated from the second operation tabl