The invention discloses a folding flaky workpiece storage device. The folding flaky workpiece storage device comprises a storage workbench and a folding mounting frame, wherein the folding mounting frame is installed on the storage workbench; the folding mounting frame comprises a folding arc block and a plurality of folding block pieces which are installed on the folding arc block, the pluralityof folding block pieces are distributed on one side of the folding arc block in a circular array, one side of the folding arc block is fixedly installed on the storage workbench, and the other side ofthe folding arc block is movably installed on the storage workbench. According to the folding flaky workpiece storage device, the folding mounting frame which can be folded is arranged on the storageworkbench, the folding mounting frame adopts the folding arc block, the plurality of folding block pieces which are installed on the folding arc block and a storage structure of a support positioningblock, so that flaky workpieces are stored and placed, and the folding flaky workpiece storage device has the characteristics of simple and clever structure, convenience in use, high adaptability andthe like.