Abstract: The present invention relates to a cosmetic composition including fibroblast growth factor 17 (FGF 17). When using the cosmetic composition for skin regeneration including fibroblast growth factor 17 (FGF 17) of the present invention, the proliferation ability of fibroblasts in the skin is promoted such that there is an effect of skin regeneration, synthesis of collagen and elastin is promoted such that it is possible to ameliorate skin wrinkles and improve skin elasticity, and the proliferation ability of aged skin fibroblasts is restored as much as that of unaged skin fibroblasts such that skin aging can be prevented, and therefore, the cosmetic compound can be widely used in the cosmetic field and the pharmaceutical industry.