The invention relates to a method and device for configuring box wiring of a split-joint-type display screen and a method for configuring the display screen. The method for configuring the box wiring comprises the steps of obtaining the configuring number of physical boxes of the split-joint-type display screen, generating a box configuring picture according to the configuring number of the physical boxes, generating the box wiring on the box configuring picture to supply a user to check according to a triggering sequence of a plurality of virtual boxes in the box configuring picture by the user, respectively assigning configuring parameters of the physical boxes for the virtual boxes, and outputting the configuring information, including the positions of the physical boxes and the sizes of the physical boxes, of the split-joint-type display screen according to the configuring parameters, assigned for the virtual boxes, of the physical boxes and the box wiring. Therefore, the method and device for configuring the box wiring of the split-joint-type display screen and the method for configuring the display screen have the advantages of being easy to operate, short in screen-configuring time, high in precision, capable of displaying the wiring mode and the wiring direction of the boxes in a visualized mode and the like.