The main contents of applying for trademark registration are: (1) the principle of applying for trademark registration 1, and the principle of applying first. Grant the first applicant the exclusive right to use a trademark and reject other applications. 2. The principle of applying for a trademark. It is allowed to apply for registration of the same trademark for different categories of goods in one application. 3. The principle of voluntary registration. Under normal circumstances, trademark users can decide whether to apply for registration of the trademarks they use. (II) Application Documents for Trademark Registration To apply for trademark registration, the following documents shall be submitted to the Trademark Office: 1. Application for trademark registration; 2. Ten trademark designs and one black and white ink; 3. Where the applicant applies for trademark registration of drugs or tobacco products, it shall also attach a certificate issued by the health administrative department or a document approved by the national tobacco administrative department for production. To apply for the registered trademark of other commodities that need to be registered as stipulated by the state, the approval documents of the relevant departments shall be attached. 4. Where a trademark agency is entrusted to apply for trademark registration, a Power of Attorney for Trademark Agency uniformly formulated by the Trademark Office shall be submitted.