本文研究了Cu2＋对拟威克酵母Wickerhamiella domercqiae Y2A槐糖脂产量和组成的影响，发现Cu2＋不但能够提高槐糖脂的产量，而且能够改变槐糖脂的组成。当Cu2＋含量为10 mg· L-1槐糖脂的产量达到152．25 g· L-1，比对照提高1．18倍。通过TLC，FT-IR，HPLC、LC-MS分析手段对槐糖脂的组成成分进行了分析，发现加入Cu2＋后，内酯型槐糖脂含量降低而酸型槐糖脂含量增加。“,”The inifluence of Cu 2+affecting the composition and production of sophorolipids affected by Wickerhamiella domercqiae Y2A .The yield of total sophorolipids was greatly increased when adding Cu 2+in the medium,the yield of total sophorolipids was about 152.25 g· L-1 under10 mg· L-1 Cu2+condition, which was 1.18 times higher than that of control .TLC,FT-IR,HPLC and LC-MS were used to analyze the composition of sophorolipids from Cu 2+.The result showed that the quality ratios lactonic sophorolipids decreased when adding Cu 2+in the medium.