The study investigated, for the first time with respect to Fischer-Tropsch synthesis of fuels, cobaltcontaining catalytic systems based on SAPO-11 molecular sieves with differing secondary porous structure characteristics. Various methods, such as XRD, low-temperature nitrogen adsorption/desorption, SEM, TEM, H2-TPD, and NH3-TPD, were used to characterize the prepared catalysts, which were subsequently examined in hydrocarbon synthesis at 2.0 MPa, 240 degrees C, and gas WHSV = 1000 h-1. The study demonstrated good prospects for micro/mesoporous-structured SAPO-11 as an acid catalyst component for fuel production.