Abstract: A method for processing fish fillets by separating a superficial layer of said fillet comprising the skin and an apparatus for performing this method is described. The apparatus essentially comprises a conveying roller (3) for carrying the fish fillets skin-side down and a pressing shoe (6) which, with its pressing surface (7) forms a conveying gap witht he conveying roller (3). At the input side of the conveying gap, the pressing shoe (6) is formed as a first knife (11), above which a driven second knife (16) is arranged in a knife guide (14). With this arrangement, it is possible to detach a further superficial layer apart from the skin layer and to collect these two layers separately.