To prevent an unnatural force from being added to a tube holding part by disecting the pinching piece part of the tube holding part in the thickness direction of a cutter, forming divided pinching piece parts and constituting the opposing divided pinching piece parts to be independent and elastically and freely separation possible.

This tube coating cutter 1 is formed by division into first division cutter 1A and the second division cutter 1B which are superimposed in the thickness direction and a cutting blade 5 for cutting the coating film 22 of a coated tube 20 is intervened in a boundary part where the both division cutters 1A and 1B are mutually superimposed. Then, division pinching piece parts 6A and 6B formed by dividing the both pinching piece parts 4 arranged so as to face the tube holding part 3 are made to be independent and elastically and freely separation possible between the opposed bodies. Thus, the unnatural force is not added to the tube holding part 3 while stably holding the coated tube 20.