A novel series of ammonium tetraphenylborate (ATB) and borate chemical compounds (BBC) were synthesized as wood preservatives. The leaching rates and decay resistance of boron formulations containing ATB and BBC were conducted. The laboratory leaching results showed that boron leaching rate of treated wood by ATB formulations was from 2.1% - 6.7%, while that of BBC formulations from 23.3% -59.0%. BBC could inhibit Gloeophyllum trabeum and Phanerochaete chrysosporium at all the concentrations by laboratory inhibition zone test. Mass loss of masson pine (Pinus massoniana), sapwood treated by BBC1 and BBC2 solutions were 1.4% - 2.6% (by Gloeophyllum trabeum) and 2.5% - 3.8% (by Coriolus versicolor) at the retention around 7.0kg/m3.

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