Choosing bamboos (Phllostachys henonis) treated with five agents as test materials, the experiments on decay resistance efficiency of the agents have been done. The results have been showed in the paper.Using hot and cold bath proces, the bamboos treated with the concentration of 5% f BBand concentration of 3% of BBF have better antidecay efficiencies. Using soaking methods, the bamboos treated with 5% of BP, CCB, FCAP have better efficiencies of antidecay. The soaking time is good for 19 days.The antidecay of natural bamboos (Phyllostachys pubescens) is worse than natural wood When having the 20% weight lossing rate, the bamboos have lost their worth of utilization. While at the same rate, using of wood is effected to some extent.