The invention relates to the technical field of mobile telephone shell machining, and particularly discloses a light-sensitive plastic mobile telephone shell and a manufacturing technology of the light-sensitive plastic mobile telephone shell. The technology comprises the following steps of blending printing ink, wherein fluorescent powder is ground and then is mixed with gloss oil according to the mass ratio of 1:1 to 3, and stirring is carried out; conducting printing on an IML thin film, wherein the blended printing ink is used for printing patterns on PET, at least one layer of effect color printing ink and at least seven layers of protective layer printing ink are printed, the thickness of each layer ranges from 0.004 mm to 0.006 mm, and finally at least one layer of binding agents is printed; conducting forming, wherein the printed PET is formed and punched; conducting injection molding, wherein a formed and punched PET sheet is implanted into an injection molding cavity for injection molding, and a finished product is obtained. The surface of the manufactured light-sensitive plastic mobile telephone shell has a light-sensitive pattern layer, and the patterns can be displayed under illumination. The colors and the patterns of the mobile telephone shell can be changed along with differences of illumination, the appearance is exquisite, and the requirement of a consumer for the appearance of the mobile telephone shell can be met. The technology is simple and convenient to implement, and cost is low.