The <em>Fabaceae</em> are a large family, members occurence of which is very common at various latitudes. The characteristic feature of this plant family is the symbiosis with the bacteria genus <em>Rhizobium</em> and <em>Bradyrhizobium</em>. The analysis of acetone extracts from dried seeds of the subfamily <em>Papilinioideae</em> revealed the occurrence of alkylresorcinols in about 85% of the examined samples. Unfortunately, it was not possible to verify this observation in the second subfamily of <em>Fabaceae-Caesalpinioideae</em>. It was partly because there is merely one species belonging to this subfamily, in Poland.In reference to the common occurence of alkylresorcinols in <em>Papilinioideae</em> some interspecific differences were indicated. This survey is a basis for further studies on the <em>Fabaceae</em> family.