Research had been carried out into the structure and the biomass for different organs of Phyllostachys praecon stands located at Chongyang County，Hubei Province,which were intensive managed,the results showed that bamboo stems were uniform distributed in ground,the average DBH of plots studied was 2.55 cm,the management density calculated according to the average DBH was 15 000 stems per hm2 （1 000 stems per 667 m2 ）；all stands studied were very young and in good health,stems density for 1,2,3,4 and 5 a were 3 000 stems per hm 2 ,4 660 stems per hm 2 ,3 880 stems per hm 2 ,460 stems per hm2 and 20 stems per hm 2 with 24.59%,38.20%,31.80%,3.77% and 1.60%,respectively; for anti-snow pressure,although tip hooking made the stem shorted,branch round decreased and crown width dwindled,leaf area index increased.When harvesting bamboo shoots,big and strong shoots were kept uniform in a stand ground which would grow as new stems,so the distribution of DBH was not a normal one，but a rightward.The tending made the stem height under the branch changed as well.The biomass for different Phyllostachys praecon organ was in the following order:culm＞bamboo stump＞bamboo rhizome＞ leaf＞ branch,and tip hooking also made the biomass for organs varied.