It is a dream desire for many people to collect rare treasure. In recent years, along with rapid economic development, the art market is also rising, and various kinds of art fairs have quickly emerged, together with a too high, too hot and too fast market. Amid such a climate some experts have angrily pointed out that, “Art Fairs are not supermarkets!” An art work can fulfill its commercial value in the market, but it is not the only value of the art.