To provide a device, that a cutting precision of a micro-joint part is improved and a large size product is easily taken out, for a conventional plate working machine at a low cost.

When a work W is clamped, moved, positioned by a clamp device 31 and a contour A of a product G is cut off from the work W by a plate working device, at a main working position K, cutting is done while part of a side near a clamped position among the contour A remains so that the product G is not swung at the time of movement and moved while being attached to the work W in a stable state. A remained part is precisely cut by a sub-punch device 99 arranged outside the plate working device than the main working position. The product G cut off from the work W is positioned outside the plate working device and a suction device of a fist work take-out device 119 for product take-out is made larger conforming to a size of the product G, a large size product or a small size product are easily taken out.