The invention discloses a sample preparation clamping apparatus for metal cup drawing test, relating to the field of machine work and comprising a bearing part and a loop sheathed outside the bearing part; the upper part of the bearing part is provided with a mechanical transmission joint or a handle; and the bearing part and the loop are fixed through a fixing device arranged on the loop. The upper part of the bearing part is provided with the mechanical transmission joint or handle, therefore, the two polishing modes of mechanical polishing and manual polishing are realized. The fixing device plays the role of fixing the bearing part and the loop. By using the clamping apparatus, cup drawing samples with high planeness and smooth and bright surfaces can be prepared.