To provide a film for protecting a cathode-ray tube(CRT) that will not generate discoloration, while improving the image contrast and has sharpness of screen.

This cathode-ray tube protecting laminated polyester film consists of at least three layers containing a pigment in the inside layer, and a coating deposited on the film has a light transmissivity in the range of 25-80% for a light of 550 nm, covered by a hard layer consisting of laminated polyester film for protecting cathode-ray tube, and a hardening layer originating from active energy ray hardening resin.