The invention discloses a test die base for an asphalt mixture wheel grinding forming instrument. The test die base comprises a lower base, an upper base, a base connecting part and a detachable connecting part, the lower base is arranged at the lower portion of an upper baseboard, and the base connecting part is arranged between the lower base and the upper base; the lower end of the base connecting part is rotatably connected with the center of the lower base, and the upper end of the base connecting part is rotatably connected with the center of the upper base; the detachable connecting part penetrates through the lower base and the upper base, and the lower base and the upper base are detachably connected through the detachable connecting part. According to the test die base, the lowerbase, the upper base and the base connecting part are arranged; under the function of the base connecting part, the upper base is pushed to be capable of successfully rotating when making turns, andthe purpose of rotating a test die in a test process is achieved; the test die base is simple in structure and convenient to operate, the labor is saved, the test efficiency is improved, and the safety is high.