Studies on the non-fish catches on the African fishery grounds have been carried out since 1969 within the Szczecin Maritime High Sehool research program. This paper presents the preliminary analysis of the non-fish catches species composition and percentage in the total Polish catches from Cap Blanc area in 1971. It was found that the cephalopods were basic oomponents of the non-fish catches, amounting to 0.3-0.4 % of the whole catch. The length composition end the mantle length -total weight relatlonship were analysed in Loligo vulgaris, Sepia officinalis and Octopus vulgaris. Small amounts of crustaceans, dolphins, tortoises and snails were found beside the cephalopods. The composition of the non-fish catch was different in pelagic and bottom fishing, it depended also on the depth and the time of day. The cephalopods in Polish catches yielded ca 200-300 tonns per year; lt could allow for their possible industrial use.