PURPOSE: A cosmetic composition containing Zizania aquatic extract is provided to enhance moisturization effect. CONSTITUTION: A cosmetic composition for moisturization contains Zizania aquatic extract isolated using water or hydrous or anhydrous alcohol of 1-4 carbon atoms. The extract solvent is hydrous ethanol. The cosmetic composition contains 0.001-5% of the extract of liquid phase or powder phase. The cosmetic composition is manufactured in the form of a skin softener, nutrition lotion, massage cream, nutrition serum, essence, or pack.본 발명은 지자니아 아쿠아티카(Zizania aquatica) 추출물을 포함하는 보습용 화장료 조성물를 제공한다. 본 발명의 화장료 조성물은 우수한 보습효과를 제공하는 효과가 있다.