Method of producing photopolymerizable lithographic plate

The present invention provides a method for manufacturing a light-polymerizable planographic printing plate can be produced becomes stable sensitivity, printing durability and does not generate deinking Trouble, plastic film, residual color and other undesirable fault developing, due to damage caused by a protective coating, residual film of good quality failure photopolymerizable planographic printing plate, and even if the air conditioner is not provided and that the high speed of the production line, can be easily and reliably control the moisture content of the protective coating. Coating the protective coating - the crystallinity of the drying unit (24), the protective coating on the photosensitive layer coating coater, while the protective coating is controlled to 0.2 to 0.5.