The present invention relates to a method for stabilizing retinol (Vitamin A), an unstable fat-soluble material, to use the same in cosmetics. The present invention provides an anti-inflammatory and skin wrinkle reducing cosmetic composition containing retinol stabilized by nano-emulsification, wherein a retinol polymer nanocapsule formed by capturing retinol with porous polymer particles is nano-emulsified by a mung bean MCT (medium chain triglyceride) extract and lecithin for stabilizing retinol.