Professional dress is different from tile normalized full dress, because it has the effect of showing identity, status and power, for example, the professional dress for manager and shop assistant are different in style and color. Generally speaking, once certain profession appears in certain dress image, it will be easily identified and recognized. When people think of this profession, first thing that comes into mind is the dressing image of this profession or when people see certain specific dressing image, they will instantly correspond it to its related profession. Postmen are called "messenger in green dress" and medical staffs are called "angles in white dress." So dress could display people's social character and social character enriches the cultural image of the professional dress.
The development level of commodity economy is closely related with the development of professional dress. As early as in the Song Dynasty, because city and town economy developed quickly, professional dress had already shown the necessity of dress socialization. It was recorded that "people who sell medicine and divinatory symbols all wear hats and belts and as for beggars, they also have dress standards to follow." This standard that society created for professional dress in fact was the signs of social civilization. There were also the written descriptions for hotels and restaurants in old times, "women in neighborhood who tie blue and white doth towels around waist and coil up wei hair bun, pour wine and exchange soup dishes for the guest." Obviously professional dresses in that time were categorized only by professions. Though a specific dressing image of certain restaurant had not formed, it actually possessed the basic features of professional dress.
