Here, we investigate the effects of incorporating hexagonal boron nitride (h-BN) into magnesium-carbon nanotubes (Mg-0.5wt% CNTs) nanocomposites. Adding 4 wt% h-BN to the Mg-0.5 wt% CNT nanocomposites can improve the wettability between Mg and CNTs and enhance the corrosion resistance properties.