The invention relates to a turnover-type thermal shock and thermal fatigue test platform, which belongs to the technical field of test appliances. The turnover-type thermal shock and thermal fatigue test platform comprises a test platform support, a first infrared thermometer, a first test piece, a heat preservation cavity support, a heating device, a second test piece, a heat preservation cavity,a hood, an exhaust manifold, a high-temperature pipe fan, a first clamp, a second infrared thermometer, a swing cylinder, a linear guide rail, a first position sensor, a linear cylinder, a sliding block, a second position sensor, a third infrared thermometer, a T-type rod, a second clamp, a cooling device and a controller. Two test pieces can be tested at the same time, one is heated and the other one is cooled, the two test pieces turn over vertically for 180 DEG under driving of the swing cylinder, and the two test pieces can rotate together with a working platform to exchange working positions under driving of the swing cylinder. The turnover-type thermal shock and thermal fatigue test platform is simple, practical and high in working efficiency, and in the case of simulated experimental study on thermal shock and thermal fatigue of a piston in an internal combustion engine, the test cost can be saved, and the research and development period of related parts can be greatly shortened.