It is a common phenomenon that Ginkgo biloba L. produces multi-trunks in the process of development. This research take the Linyi Shengsheng garden multi-trunk ginkgo group which is the biggest of our country as an object, use tally method to measure multi-trunk ginkgoes in the garden.The result shows that there are 385 ginkgoes in the garden with 379 female plants which accounted for 98.41%;the average height is 20.9m,the total DBH is 0.93m,the parent stem DBH is 0.33m, the crown diameter is in 5.0-15.0m range,the under branch height is 6.3m;17 ginkgoes grow without multi-trunk, the ratio of multi-trunk is 98.58%,the average number of multi-trunks in single plant is 4.6,the biggest multi-trunk height is 12.5m,the DBH is 0.18m,the distance between multi-trunk and parent stem is 0.61m,the angle between multi-trunk and parent stem is 10.5?34 ginkgoes grow without sproutings,the average number of sproutings is 38, sproutings height is 1.11m,the distance between sproutings and parent stem is 0.73m.The original stumps of these ginkgoes has 240 years of history and the present ginkgoes which are 53 years actually sprouted from the original stumps.This paper discusses about multi-trunk ginkgo origin in the Shengsheng garden, sex ratio, the relationship between multi-trunk and adaptability of Ginkgo biloba L. and so on.