Legal analysis: A well-known trademark is a trademark that is widely known and enjoys a high reputation by the relevant public in China, in which "relevant public" refers to consumers related to a certain kind of goods or services identified by the trademark, other operators closely related to the marketing of the aforementioned goods or services, and sellers and related personnel involved in the distribution channels.

legal basis: the following factors should be taken into account in determining a well-known trademark according to Article 14 of the Trademark Law of the People's Republic of China: (1) the awareness of the trademark by the relevant public; (2) the duration of the use of the trademark; (3) the duration, degree and geographical scope of any publicity work of the trademark; (4) The record that the trademark is protected as a well-known trademark; (5) Other factors that make the trademark famous.