Trademark is the product of the development of commodity production and commodity exchange to a certain stage. Archaeologists have discovered based on the unearthed pottery that in ancient China, potters were forced to mark their names on the pottery, but it is difficult to verify whether these pottery have entered the field of commodity exchange, so this is not a true trademark. With the development of commodity production and commodity exchange, producers gradually realize the importance of using marks on their products, so that consumers can identify and purchase their products based on the marks. By the Northern Song Dynasty, the "White Rabbit" trademark used by the Liu family's "Kung Fu Needle" shop in Jinan, Shandong, which specialized in manufacturing fine needles, had both a graphic and the words "Rabbit is the mark". This is the earliest and relatively complete trademark discovered in our country so far. Based on this, we can give a simple definition of trademark: a trademark is a mark used to distinguish the source of goods or services.