Solid oxide fuel cell (SOFC) is one of the efficient power generation technologies which have high applicability to use various kinds of fuels including city gas, coal, and biomass. As SOFC can transport oxygen ions from the cathode side to the anode side, the exhaust anode off-gas contains CO2 and H2O only, so that CO2 can be captured simply by cooling the exhaust gas. This means that we can, in principle, develop highly-efficient CO2-capture SOFC power generation system by integrating efficient oxygen production system and exhaust gas cooling system. In this paper, we propose CO2-capture SOFC-Micro Gas Turbine (MGT) hybrid power generation system as a new application towards low-carbon society. Results of feasibility study and performance analysis indicated great potential and high applicability of efficient CO2-capture power generation solutions.