Abstract: Goose fat liver have plenty of nutrition materials, especially lecithin, which has important nutrition value. This experiment measures the nutrition ingredient, and studies the process of extracting lecithin in the goose fat liver, also studies many factors which can influence the ratio of product, such as the amount of organic solvent, density, extraction time and extraction temperature. According to the single ingredient experiment and the method of well-distributed design which can acquire the better plan.

Key words: goose fat liver, lecithin, extraction