The CTP, which debuted at Drupa in 1995, has been moving from popularity to maturation with the ups and downs. From a technical point of view the most discussed is the quality of the problem, photosensitive CTP and thermal CTP and its R & D applications. And the application of the photosensitive violet laser CTP in the newspaper industry has become an indisputable fact, commercial printing thermal CTP has also firmly fixed the heel. Thermal CTP is widely accepted is its own excellent features and high-quality products are inseparable.