Anatomical characteristics and mechanical properties of bamboo scrimber with density from 0.8,1,.2g/cm3 were investigated.The results showed that the fiber and parenchyma cell damage degree was increased with the increasing of density.The conducting and ground tissues were destroyed first,and then thin walled fibers,the thicken cell wall fibers retained integrated.Compared to the original bamboo,radial dimension decreased,while the concentration of vascular bundle increased.The bamboo scrimber showed improved water resistance,compressive strength and shear strength as the density increased.