Humanization of mechanical and electronic products in the final use object is a person, how to give the wisdom of the mechanical and electrical products give people Feelings and human nature becomes more and more important, in addition to improve the performance of the mechanical and electrical products, also requires the respect such as colour in harmony with the environment in the appearance, the use of these products, is a kind of artistic enjoyment to people, such as domestic robots is the highest realm of man-machine integration