Abstract: In this paper,the breeding method of seedlings was studied for the new variety of sympodial bamboos(Bambusa changningensis Yi et B.X.Li).The results showed that 2-year-old mother bamboos were slightly higher than 1-year-old ones for their shoot ratio and adult bamboo number.The average number of adult bamboos could reached 7.9.2-year-old mother bamboos were the best choice for bamboo breeding.In the case of acking mother bamboos,it was possible to choose 1-year-old mother bamboos, which could also achieve high bamboo shoot rate and adult bamboo number.The different treatments of culms and stumps had a significant influence on bamboo shoot rate and adult bamboo number.Culms with incisions and stump treatments were the best.