Surface disk plow is designed in imitation of ghost Mantis convex hull and pitfoundation, concavity is designed according to the geometric characteristics ofpronotum of male ghost mantis. Cleaning in acetone solution ghost Mantis standardwood in 85%, then add 95% alcohol solution, natural drying. Stereological microscopemeasurement pronotum geometry. Caution must be exercised in order to adapt to thedisc rotation trajectory, concave and convex hull is arranged along a concentric circle.This is the main factor for distribution in non smooth surface to consider is the normal stress distribution, the non smooth convex style selection and soil movement. In addition, the non smooth surface of the envelope and can only be a continuous andsmooth. In addition, the non smooth surface of the envelope and can only be acontinuous and smooth. Under normal circumstances, is required for all information onsurface morphology of bionic design can be obtained by simply using a microscope,and then can be parameterized to simplify the standard wood details.