Abstract: The ginkgo biloba extract contained many kinds of biological active components of flavonoids, lactones, phenols and so on, and had become a natural, green feed additive with a very wide application prospects in breeding of livestock, poultry and fishery. The active components of ginkgo biloba leaves, function of ginkgo biloba extract and its research application progress were summarized in this paper, and the basis was provided for the extensive application for ginkgo biloba extract of feed grade.