While others confirm that algae of Macrosystis pyrifera, Tetraselmis, Gracilaria tikvahiae, Hypnea sp., and Ulva sp. species may prove efficient asorganic substrates in methane fermentation processes. The objective of this review article is to present the applic-ability of algae biomass for biogas production purposes and to determine the effectiveness of methane fermentation of algae from different taxonomic groups,various production systems, and characterized by different properties and physicochemical characteristics.