The drying by microwave affect the relationship of strength, it was found that the microwave power level at what is 200W, tension strength parallel to grain, compression strength perpendicular to grain, shear strength parallel to grain, static bending and hardness were 0.2538 0.6226 0.5038 3.0321 116.3098 and 22.8, respectively. If increase the power level of the microwave to a higher strength strength will increase most at 4000w, tension strength parallel to grain, compression strength perpendicular to grain, shear strength parallel to grain, static bending and hardness were 0.4222 1.5690 0.6640 7.6840 855.0933 and 65.9,respectively.