Abstract: In recent years,bamboo pulp fiber textile products,made with bamboo as raw material,have drawn universal attentions for their unique nature.In order to make a further understanding of the physical properties of the bamboo pulp fiber,the flexibility of pure bamboo pulp yarns with different counts and bamboo pulp/ cotton,bamboo pulp/wool blended yarns with different blending ratios are tested,and a comparative study is conducted.It will have some leading meaning to the production practice.