The utilization of wanyi seeds (Mangifera caesia Jack.) in making ethanol by enzymatic hydrolysis and fermentation using Saccharomyces cerevisiae has been carried out. The method used is the hydrolysis of α-amylase and gluco-amylase enzymes, fermentation with time variation and yeast concentration as well as the addition of 0.5% urea nutrition and 0.06% NPK, distillation and gas chromatography. Ethanol content 98.508% at 6 days fermentation with yeast concentration 0.23%.