In themes of environmental pollution and toxicity,chlorinated phe-nols used in wood industry will not be allowed to use in the near future,although their efficiency in controlling sapstain, mould and decay fungi issuperior to others.It is great important to search new chemicals which are ofPotential to prevent from attacking of fungi on rubber wood and bamboo.Ei-ght chemicals,evaluated for controlling this fungi in the laboratory.In con-trolling sapstain fungi(Botryodiplodia theobromae Pat.)of rubber wood spec-imens,the inhibition concentration TMO is 0.2%,NaPCP 0.5%, MECT over1%,whereas0.4%of Cu-8 and 0.1% of TBZ are ineffective. In controllingmould fungi of rubber wood and bamboo specimens, effectiveness of TMO isas good as MECT, better than TBZ, NaPCP. Due to high efficiency, low con-centration, low cost and no pollution,TMO is expected to replace chlorinatedphenols such NaPCP.