Fashion, also known as fashion, is a way to advocate an external behavior pattern. It is characterized by novelty, mutual follow-up, imitation and short-lived popularity, such as its popular colors every year. Members of society get psychological satisfaction in pursuing what they admire. Fashion is an irrational and transitional phenomenon of behavior items or behavior patterns. This behavior pattern has the following characteristics: first, there is no class. Spread among different classes and strata. Its sponsors are generally celebrities, and once the atmosphere is opened, it becomes a means for them to seek status or express themselves. Second, there are phenomena in a civilized and open society. Its appearance and popularity are directly proportional to the degree of social civilization; Its spread can cross countries and be widely popular. Third, in terms of duration, fashion is between style and fashion. The fourth is the tool of self-promotion. By following the fashion, being unconventional and improving social status, it still retains the status of the original group members, so it is a means of self-personalization. Fifth, imitation and suggestion are strong. Such as fashion, cosmetics and other materials, travel, songs and other actions, consumption concepts, life pursuit and other social trends. Sixth, fashion behavior is lyrical, and it is a social movement to vent dissatisfaction or suppress emotions. True fashion is a positive pursuit, but we can't lose ourselves in the process of chasing. Fashion and trends may vary according to age. Fashion can show itself, but it should also conform to our identity, and we can't blindly pursue alternative and avant-garde. After all, it is the work of a world-class designer. Alas, I don't know. In short, it should be in line with our identity and age.