When designing a forklift, first determine the main color, so that the machine and tools look uniform. In other words, one color is the primary color and the other is the secondary color. Dominant color occupied most area, its position also is in marked place mostly, wait like door frame, body, balance weight. The determination of the main color of the forklift should consider the effective function of the product, so as to create a coordinated man-machine relationship for the operator, and give people a kind, comfortable, relaxed and pleasant feeling, so as to enjoy the beauty.