Legal analysis: if the trademark is not changed, it will have an impact on the exclusive right of the trademark owner to drive. If the trademark is not changed within the validity period, and the address is changed during the period, some information enterprises in the Trademark Office cannot receive it. The trademark will be regarded as an enterprise's automatic waiver of the exclusive right of the owner, which will lead to the revocation of the trademark.

legal basis: article 3 of the regulations for the implementation of the trademark law of the people's Republic of China changes the name, address or other registered items of a trademark registrant, and an application for change shall be submitted to the trademark office. Where the name of a trademark registrant is changed, the certificate of change issued by the relevant registration authority shall also be submitted. If it is approved by the Trademark Office, it shall issue a corresponding certificate to the trademark registrant and make an announcement; If it is not approved, it shall notify the applicant in writing and explain the reasons. Where the name or address of a trademark registrant is changed, the trademark registrant shall change all its registered trademarks together; If it is not changed, the Trademark Office shall notify it to make corrections within a time limit; If it is not corrected within the time limit, it shall be deemed as abandoning the application for change, and the Trademark Office shall notify the applicant in writing.