A skin-whitening composition containing a tyrosinase inhibitor is disclosed. The skin-whitening composition includes: the tyrosinase inhibitor (CitrusC) of 0.1-2.5 wt % based on a weight of the skin-whitening composition; ascorbic acid 2-glucoside of 0.1-2.5 wt % based on the weight of the skin-whitening composition; and tranexamic acid of 0.1-2.5 wt % based on the weight of the skin-whitening composition; wherein the ingredients of the composition work synergistically on whitening skin.