Abstract:Yeast extracts, widely used in the food processing, are one of the most important yeast derivatives with abundant nutritive value and could significantly increase the freshness and flavor of food. This paper reviewed the production situation and technology of the yeast extracts, including the cell-wall breaking technology, autolysis accelerator, flavor yeast extract preparation and the improvement of the yeast extract flavor. The production technology of yeast extracts will continue to improve and find its way into more areas of food-related industries.