To provide a piping repair method and a fitting machine for a piping repair coating body for carrying out the piping repair without being affected by an opening of a manhole even in the case of a comparatively large diameter piping.

A fitting machine 10 for a piping repair coating body comprises, a cylindrical main body 15, a central rib 20 to be installed removably on the outer periphery of the main body 15, a pair of side section ribs 25 and expanding sections 30a and 30b as main sections, and the above-said main sections are constituted of coating components to be carried into and out from an opening of a manhole. Respective constituting components are carried from the opening of the manhole into the manhole, and the fitting machine 10 is assembled and a repair coating body is set on the inner peripheral face in a piping connected with the manhole, and the fitting machine 10 is dismantled into respective constituting components, which are carried out from the manhole.