To provide a heparin analog-containing oil-in-water emulsion composition that is excellent in long-term storage stability as well as in use feeling and moisture retention effect during its application.SOLUTION: An oil-in-water emulsion composition contains following components (A), (B), (C), (D) and (E) with a 30°C pH of 4.5-7.0: (A) a heparin analog 0.05 mass% or more and 0.6 mass% or less; (B) hydrophobized hydroxypropyl methylcellulose 0.01 mass% or more and 0.5 mass% or less; (C) oil solution; (D) a surfactant; (E) water.SELECTED DRAWING: None【課題】長期保存安定性だけでなく、塗布時の使用感及び保湿実効性に優れた、ヘパリン類似物質含有水中油型乳化組成物の提供。【解決手段】以下の成分(A)、(B)、(C)、(D)及び(E)を含有し、30℃におけるpHが4.5~7.0である水中油型乳化組成物。 (A)ヘパリン類似物質 0.05質量%以上0.6質量%以下 (B)疎水化ヒドロキシプロピルメチルセルロース 0.01質量%以上0.5質量%以下 (C)油剤 (D)界面活性剤 (E)水【選択図】なし