In order to increase the accuracy of the experienments of sugarcane’s physical cutting indoor. Due to the practicality of the ingathering by machines in field, the group did some simulation design of clamp holder for sugarcane’s structure on the experienment table. As to make sure the cases in laboratory are close to those in the fields, inflict suitable force to the sugarcane. The parameters of the two kinds of soil including the water content and the hardness value of soil are different. The dry one is 8.7% and 17.5kg/cm2. The wet one is 19.05% and 6.83kg/cm2. The structure of clamp for sugarcane is the form of two springs. 65Mn as material, the diameter is 3 mm, the free length is 130 mm, the active length is 127 mm, the stiffness coefficient is 44.3N/mm.