Abstract: The yield of Ginkgo biloba tree is affected by many factors, among which planting density is one of the factors easily controlled in agricultural management. Damaling Ginkgo biloba 1 a seedlings were taken as the research object, the effects of different planting densities on the growth performance and yield of Ginkgo biloba seedlings for 3 consecutive years were studied. The results showed that when the planting density of Ginkgo biloba seedlings decreased, the ground diameter, tree height, number of lateral branches, number of leaves and yield of Ginkgo biloba trees（4.5 a） showed an increasing trend. When the planting density was 2.0×10~4trees/hm~2, the growth rate of Ginkgo biloba trees was better and the yield was higher.