The strengthened bamboo/wood composite LVL assembled with Z1type, the outer layers of the LVL were bamboo curtain,had the better physical properties, and its MOE and MOR were 13. 43GPa and 148. 13*** respectively, increasing by 33. 63% and 56. 16% as co***red with that of Z2,the outer layers were poplar veneer and the next layers were bamboo curtains.