PURPOSE: To surely supply a highly viscous paint into the main body of a roller and to carry out excellent painting even when the paint supply pressure is low by separating a recessed part adjacent to a protruded part for scraping out of a squeeze shaft into plural sections in the lengthwise direction.

CONSTITUTION: With respect to a paint force-feed system coating roller suitable for coating a highly viscous paint, recessed parts 3a and 3b adjacent to protruding parts 4a and 4b for scraping out of a squeeze shaft 1aW1d are separated into plural sections in the lengthwise direction. Accordingly, even when the roller is vertically used, the paint supplied into the recessed parts 3a and 3b flows to the lower end side of the roller without accumulation, the paint is almost uniformly supplied over the whole length of the roller main body and even coating can be easily carried out.