China Famous Brand is a brand promotion committee organized by AQSIQ. Celebrities from all walks of life are invited to form a competition once a year. In China, it is an official appraisal, and it is subject to certain administrative protection by quality supervision departments at all levels. Correspondingly, the provincial quality and technical supervision departments also evaluate "a famous brand in a province", which is effective in various provinces, and these can be advertised; China famous brand is an appraisal certificate issued by some institutions themselves; Well-known trademarks, issued by the provincial industrial and commercial bureaus, have a certain popularity and sales performance in the province, and are generally evaluated once a year, which is also recognized by the state. Now it is often a prerequisite to declare and identify well-known trademarks in China to the state industrial and commercial departments or courts; Well-known trademarks in China are recognized by the Trademark Office of the State Administration for Industry and Commerce, the Trademark Review and Adjudication Board or an authoritative people's court in individual cases according to the market popularity, sales volume in recent three years, advertising and other indicators of a trademark. General industrial and commercial systems can carry out advertising. The court system believes that it is only effective in individual cases. These two kinds of identification can be used as an important reference for the court to judge whether the trademark is well-known in the country or region when transnational trademark infringement cases occur in the world, so they have very good brand promotion functions and legal protection benefits. Through identification, according to the administrative regulations of China's industrial and commercial departments, it can be protected across product categories. If another person's trade name cannot be the same as a well-known trademark and has existed before, he can apply for cancellation or change of trade name through the industrial and commercial departments.