The embodiment of the invention provides an exposure machine, an exposure method and a shifting control method of a transparent alignment part and belongs to the technical field of display. The problem that a visor made by a UV mask is specific in model and the UV mask is too low in utilization rate can be solved. The exposure machine comprises a visor carrying table arranged on a rack, a first positioning device and a mask carrying table, wherein the visor carrying table is connected with the first positioning device and can move on a horizontal plane under the driving of the first positioning device, the transparent alignment part is further arranged on the rack, an alignment mark is arranged on the transparent alignment part, the transparent alignment part is arranged between the visor carrying table and the mask carrying table through a second positioning device, and the second positioning device can drive the transparent alignment part to move on the horizontal plane.