The official website of the Trademark Office of the State Administration for Industry and Commerce of the People's Republic of China, the website link is: /trssearch/

You can also query through an intermediary.

Recently, official website, the Trademark Office, is undergoing a major adjustment. The query requires a verification code and may not be able to log in. It is suggested that inquiries can be made through agents in the near future. Some agency companies have their own professional query software, which is not affected by the adjustment of the Trademark Office system.