Аннотация:The main trends in modifying the structure of bilayer metal-ceramic membranes developed in Russia to fabricate next-generation multilayer metal–ceramic membranes (MMCM) with a wide range of pore sizes from 0.4 to 100 nm and a narrow pore size distribution have been considered. The examples of MMCM structures of various morphologies, the possibilities of further approach to their modification, and possible applications have been shown. Schematic diagrams of existing and prospective membrane units based on metal–ceramic membranes have been demonstrated. The advantages and promising areas of application of such units are discussed.