Abstract: The paper makes simple statement and comparing towards the shading handling method after the surface of the curvy object is discreted into small polygons，based on popular Phone shading handling method.It presents the improved handling method，Phone shading handling method.The direct bilinear interpolation to diffuse reflection L·N and specular reflection N·H in the Phone illumination mode not only guarantees the coloring effects，but also makes the efficiency of Phone shading handle grow by 1/3.