The paper describes experimental results of particleboard reinforced with fiberglass binds. MOR and MOE of the board were improved sharply and then gently with increased consumption of glassfiber binds.Both the MOR and MOE increased lineally but internal bond strength ( IB ) was changed unobviously with distance between glassfiber binds inside shortened.When the distance were too close together,the IB of the board could not meet the requirement of exterior particleboard of Germany Standard DIN 68763 V100.The closer the glassfiber binds toward surface layer of the board,the higher the MOR and MOE.