To provide an apparatus for conveying a sheet metal workpiece, which is high in the accuracy of the positioning of outside setup origin of the sheet metal workpiece although it is a simple structure and high in productivity.

This apparatus for conveying the sheet metal workpiece for carrying in/out the sheet metal workpiece to/from a working machine body and which is provided with a front table in the front of the working machine body and also a set table on the right or the left of the front table and has an X-axis rail and a pair of a clamp gage unit R and a clamp gage unit L for conveying the workpiece to the front table, after positioning the origin of the sheet metal workpiece on the set table and a manipulator for positioning the sheet metal workpiece from the front table to the working machine body. The X-axis rail is provided while crossing the front table from the set table, the pair of the clamp gage unit R and the clamp gage unit L are equipped on the X-axis rail respectively and independently and made synchronously controllable. Traveling of the manipulator is controlled in the Y-axis direction orthogonal to the X-axis rail and also the clamping part of the manipulator is situated more on the side of the working machine body than the X-axis rail.