To prevent fingers or the like from being brought into contact with the cutter part of a cutter body and injured and the blade of the cutter part from being chipped off.

In this peeler of a coated pipe for peeling the coating body of the coated pipe in the cutter part 22 by inserting a center pin 21 to the pipe body of the coated pipe and rotating the cutter body 23 around the center pin 21, a protective member 41 projected more on a tip side than the cutter part 22 of the cutter body 23 is provided. Also, a guide member 39 externally fitted to the coated pipe for guiding the coated pipe to the cutter part 22 is provided on the tip side of the cutter body 23 and the part corresponding to the cutter part 22 of the guide member 39 is turned to the protective member 41 projected more on the tip side than the cutter part 22.