The invention discloses a performance testing jig for a flexible display material under a specific bending condition. The performance testing jig comprises a rotatable pressing roller, a plurality of target curvature radius models, bearings, a plurality of bearing frames, a Z-axis displacement device, a transfer rack and a bottom plate, wherein the plurality of target curvature radius models are of different curvature radiuses respectively and can be replaced, and thus different plurality of curvature radius testing requirements can be met; and the bearing frames have different distances, can be replaced and respectively correspond to the target curvature radius models of different curvature radiuses. The Z-axis displacement device is used for pressing a sample to be tested to the target curvature radius models through the rotatable pressing roller according to an appointed stroke, so that specific expected curvature radiuses and wrap angles of the sample to be tested can be maintained in the testing process.