Some scholars believe that Ou is a vessel for putting things. It is said that in ancient times, this place was named after the word "ou" because of its mass production in Wenzhou today. The word "ou" appears next to the word tile, which is obvious and easy to understand. It should refer to a small country with developed pottery and kiln industry. However, some experts disagree. Although "ou" is interpreted as a "small pot" in ancient books, how different it is from small pots, small bowls, small pots, teacups, teapots and teacups is still inconclusive. Moreover, in some early documents related to "ou", there is no expression related to southern Zhejiang. Even the "Yue Ou", which was first seen in some poems in the Tang Dynasty, was actually very late. Most of the "Yue Ou" refers to the celadon of Ou kiln that appeared in the late Eastern Han Dynasty. In this way, it seems that the saying named after Ouchi, invented by Europeans, has fallen into an insoluble contradiction.