The present invention relates to a water-in-oil type lip cosmetic composition which uses a water-soluble polymer, and more particularly, to a lip cosmetic composition which stabilizes a water-soluble polymer in oil without using an emulsifier. The lip cosmetic composition provides a sufficient lip volume-enhancing effect via the water-soluble polymer while exhibiting excellent glossiness and having good adhesiveness to the lips without being sticky, and thus feels good when used.本發明涉及一種利用水溶性聚合物的油包水型唇部化妝品組合物,更加詳細地,涉及一種如下唇部化妝品組合物,所述唇部化妝品組合物中,水溶性聚合物在沒有乳化劑的情況下穩定於油相內,藉由水溶性聚合物提供充分的提高唇部豐盈的效果,同時表現出優異的光澤性,在唇部上的貼合感好,並且沒有黏糊感,使用感突出。