PROBLEM TO BE SOLVED: To stabilize an oil-in-water type emulsion composition having pH of &le5 and viscosity of 1 to 1,000 mPa s, especially 1 to 500 mPa s.SOLUTION: This oil-in-water emulsion composition contains an N-acyl taurine salt in an amount of 0.1 to 2 mass%, has pH of &le5, and has viscosity of 1 to 1,000 mPa s.COPYRIGHT: (C)2010,JPO&INPIT【課題】pHが5以下であり、かつ粘度が1~1000mPa・s、特に1~500mPa・sである水中油型乳化組成物を安定化させる。【解決手段】N-アシルタウリン塩を0.1~2質量%含有し、pHが5以下であり、かつ粘度が1~1000mPa・sである水中油型乳化組成物。【選択図】なし