To obtain the subject cutter capable of providing a woven fabric having weft ends with selvedge of fixed length along the whole length even in weaving crimp, by installing a guide member to be elastically brought into contact with the selvedge of a woven fabric.

This cutter 1 for cutting the selvedge of a woven fabric 8 by a movable cutting blade 5 and a fixed cutting blade 3 is rotatable around a central shaft 7a of a revolving shaft 7 approximately on the plane of the woven fabric 8. A guide member (a pin 9b for supporting an approximately U-shaped material 9a at the end side) to be elastically brought into contact with the selvedge of the woven fabric is movably supported on the fixing part of the cutter.