The present invention relates to a manufacturing method for soybean milk added with isoflavones, comprising the steps of: extracting isoflavone powder； adding the isoflavone powder into an alcohol water solution to form a mixture solution； heating the mixture solution； stirring the heated mixture solution to form a homogenous isoflavone solution； and adding the isoflavone solution into a soybean milk and blending until a suitable concentration is reached. Accordingly, an eater can intake isoflavones needed by the body from drinking the soybean milk, thus meeting the requirements of modern people on physiological health care.本發明係為一種添加異黃酮素之豆漿的製造方法，其包含以下步驟：萃取異黃酮粉末；將異黃酮粉末加入酒精水溶液中並形成一混合液；對該混合液進行加熱；攪拌該經加熱之混合液以形成一均質的異黃酮溶液；將該異黃酮溶液加入豆漿內並調配至適當的濃度。藉此，食用者飲用豆漿後便能攝取體內所需的異黃酮素，符合現代人生理保健之需求。
