Multicomponent reactions (MCRs) have been widely applied for the synthesis of biologically active molecules with high complexity and diversity. Nowadays, total synthesis of natural peptides, due to their multifarious application areas, has attracted much attention of organic chemists. MCRs are a powerful and efficient method for the production of natural peptides in a limited number of steps. This review presents an overview on application of multicomponent reactions as a key step in the synthesis of natural peptides.