Lignincellose fiber was one of special fibers which were used for textile fiber, paper, engineering plastics, etc. And Eucalyptus camaldulensis has been widely planted in south China. Therefore, based on the single-factor method, the fresh Eucalyptus camaldulensis wood flour were treated by means of the alkali liquor extraction to obtain the best purification of lignincellose fiber. The results are as follows: During the the sorbitic-extracting process, MPC had significant influence on leaching rates of wood extractives and hemicelloses at 0.01 level. And sort of alkaline had significant effec...