To provide a work carrying device capable of efficiently carrying a work, by making a processing line compact.

This work carrying device 100 includes a guide rail 102 arranged in the lateral direction in a front view in front of a machine tool, a work supplying loader 110 arranged on one side in the lateral direction in a front view so as to be movable along the guide rail 102, and a work carrying-out unloader 120 arranged on the other side in the lateral direction in a front view so as to be movable along the guide rail 102. The loader 110 and the unloader 120 include arm parts 118 and 128 rockable between an upright state of turning the tip of itself upward and a tilting state of turning the tip of itself toward the machine tool, and a hand part 130 arranged on the tip of the arm parts 118 and 128 and gripping the work.