The popularity and mass production of tri-color in Tang Dynasty has its profound historical background and practical significance. Its appearance is the inevitable product of social development to a certain historical stage. The economic development further led to the extravagance and luxury of the ruling class in the Tang Dynasty. This lifestyle of pursuing luxury and paying attention to ostentation and extravagance is mainly reflected in the use of sacrificial objects in the hierarchy of laws and regulations, that is, the three colors in the Tang Dynasty.