The present invention provides a clothes processing apparatus comprising: a main body having a clothes inlet; and a door configured to open and close the clothes inlet, wherein the door comprises: a door cover which forms an outer appearance of the door and has a transparent area and an opaque area formed to surround the transparent area; a display module, disposed on a back surface of the door cover, for outputting visual information through the transparent area; and a touch sensor, attached to a back surface of the door cover, for sensing a touch input to the transparent area, wherein an alignment mark is formed on the touch sensor, and the transparent area is provided with a guide mark which guides an attachment position of the touch sensor using the alignment mark. Further, a method of manufacturing a door provided on the clothes processing apparatus is disclosed.