A suction table 9 is disposed at a cutting action position for a polarizing film F, and holding blocks 9a and 9b, which are different in height from each other, are disposed in proximity to each other along a transport direction on a surface of the suction table 9 to form a suction groove 14. Nip rollers 11 and 12 are disposed on front and rear sides of the suction table 9 to nip opposed ends of the polarizing film F. Further, the suction table 9 suction-holds the polarizing film F in a state that the polarizing film F is inclined with the suction groove 14 located below a portion to be cut. In this state, a laser device 10 scans the polarizing film F along the suction groove 14 to cut the polarizing film F in a width direction.