Amine-functionalized nanoporous materials can be prepared by the incorporation of diverse organic amine moieties into the pore structures of a range of support materials, such as mesoporous silica and alumina, zeolite, carbon and metal organic frameworks (MOFs), either by direct functionalization or post-synthesis through physical impregnation or grafting. These hybrid materials have great potential for practical applications, such as dry adsorbents for postcombustion CO2 capture, owing to their high CO2 capture capacity, high capture selectivity towards CO2 compared to other gases, and excellent stability. This paper summarizes the preparation methods and CO2 capture performance based on the equilibrium CO2 uptake of a range of amine-functionalized nanoporous materials.