The utility model relates to the technical field of optical fiber cutting device, and particularly relates to a kind of multi-function cutting fixture which is used to fix the optical fiber in cutting process. The utility model of multi-function cutting fixture for the optical fiber cutting device includes the clamp body and the clamp cover. One side of the said clamp body is pivoted to the said clamp cover, and the other side of the said clamp body is clamping connected to the said clamp cover. The said clamp body is equipped at least with No.1 fiber placing groove, No.2 fiber placing groove and No.3 fiber placing groove. The said clamp cover is equipped with the elastomer that contacts with the said No.1 fiber placing groove, and No.1 contact structure that contacts with the said No.2 fiber placing groove. The said No.1 contact structure is equipped with a convex body that contacts with the said No.3 fiber placing groove. Compared with the prior art, the utility model of multi-function cutting fixture can hold a variety of types of optical fiber. When holding different types of optical fiber, we do not need to change the fixture. The work efficiency is improved greatly.