In this paper the performance and bonding quality of urea formaldehyde resin specialized in low free formaldehyde content were studied. In the experiment, five species of poplar veneer were used for making 3 ply plywood. It was found that no matter whether the poplar veneer species were mixed or unmixed in assembling plywood a bonding strength according to National Standand could be obtained. The dosage of curing agent had considerable influence on the bonding strength property of poplar veneer.