If the trademark is not similar, then the difference of one word between the trademarks will not constitute infringement. Otherwise, it will be considered to constitute infringement. Trademark infringement refers to: 1. Using a trademark that is identical or similar to its registered trademark on the same or similar goods without the permission of the trademark registrant; 2. Selling goods that infringe the exclusive right of a registered trademark. Article 3 of the Trademark Law stipulates that trademarks approved and registered by the Trademark Office are registered trademarks, including commodity trademarks, service marks, collective trademarks, and certification marks; trademark registrants enjoy exclusive rights to trademarks and are protected by law. The term "collective trademark" as mentioned in this Law refers to a mark registered in the name of a group, association or other organization for use by members of the organization in commercial activities to indicate the user's membership in the organization. The term “certification trademark” as used in this Law refers to a trademark controlled by an organization with the ability to supervise a product or service and used by units or individuals other than the organization to certify the origin of the product or service. , raw materials, manufacturing methods, quality or other signs of specific quality. Special matters concerning the registration and management of collective trademarks and certification marks shall be stipulated by the industrial and commercial administration department of the State Council.