A roller for float plate glass conveyance in which, even when a plate glass breaks during annealing, the resultant glass cullet (broken glass pieces) is prevented from burring or marring the roller surface or from sticking in the surface of the roller barrel and thereby causing a defect in the roller surface and which is prevented from marring the plate glass. The roller for float plate glass conveyance has a coating film at least on that surface of the roller barrel which comes into contact with the glass. The coating film comprises: ceramic particles containing a carbide or boride of at least one element selected from the group consisting of Groups Va and VIa; and an alloy comprising cobalt and chromium, the particles having been dispersed in the alloy.