Abstract: By measuring the corresponding values of the bamboo wood exterior diameter, bamboo wall thickness and the height from the ground, the regression method has been used to obtain the regression equations among bamboo wall thickness, the height from the ground and bamboo wood exterior diameter. The test shows that the equations can meet the requirements, with these regression equations, the utilization rate has been calculated of the bamboo wood wall thickness of different crosscutting methods with the common bamboo wood of 10cm chest-height diameter, Through comparison and evaluation, a good crosscutting method has been got, which meets the manufacturing requirements and presents a higher utilization rate of bamboo.