【Objective】CE-Bézier surfaces with multiple shape parameters were blended to generate the tractor form surface, so as to solve the problem that complex surfaces could not be described by using one single surface in tractor form design.【Method】A group of CE-Bézier surfaces were constructed and blended. Based on this, different tractor shapes were designed by adjusting the surface boundary positions and the shape parameters.【Result】Multiple design solutions of tractor body shape were obtained quickly. 【Conclusion】This method is efficient, convenient, and can be widely used in modern design area.