The utility model discloses a tensile check out test set of molybdenum and molybdenum alloy tubular product, including universal tester, set up the high temperature furnace between the upper and lower crossbeam of universal tester, its characterized in that, the device still includes two last anchor clamps that the structure is the same and lower anchor clamps, it fixes on universal tester's entablature to go up anchor clamps, anchor clamps are fixed on universal tester's bottom end rail down, the exposed core of two anchor clamps all stretches into in the high temperature furnace and relative the setting, the cavity of exposed core for having conical cavity of anchor clamps, be equipped with a plurality of wedge -shaped gripper pieces in the conical cavity, the cavity inner wall is opened has the spout that matches with the wedge -shaped gripper piece, the wedge -shaped gripper piece is located the spout, be equipped with the lead screw between wedge -shaped gripper piece and the cavity outer wall. The utility model discloses rational in infrastructure, it is convenient to dismantle, can realize the centre gripping to different tubular product diameters, has avoided slip and fracture at high temperature tension test in -process sample, has guaranteed the uniform deformation of tubular product under the high temperature.