From the powerful general manager, to the civilians entering and leaving luxury business centers, to the ordinary workers operating machinery, gold collar, white collar, pink collar, gray collar and blue collar all lead the way in the workplace. The color of the collar also explains the new professional concept. A survey shows that the workplace in China has changed the "dual" structure of "managers" and "workers" in the past, and is being divided according to knowledge level, professional characteristics, position, workplace status and salary, showing a "diversified" pattern. People from all walks of life in the workplace have different living conditions, different lifestyles, different jobs and different economic incomes, forming the "five collars" in the workplace, namely: gold collar, white collar, pink collar, gray collar and blue collar.