Not illegal. If a registered trademark and store name are used by others, it will be considered an infringement, but it depends on what kind of registered trademark it is. If a general trademark is used as a store name, it will not be considered an infringement, but if it is a well-known trademark, it will not be considered an infringement. , trademark and trade name are two different things. It is illegal to use a trademark that is identical or similar to the registered trademark on the same or similar goods without the permission of the trademark registrant.

"Trademark Law of the People's Republic of China"

Article 51 Anyone who violates the provisions of Article 6 of this Law shall be ordered by the local industrial and commercial administration department to apply for registration within a time limit. If the illegal business volume exceeds 50,000 yuan, a fine of not more than 20% of the illegal business volume may be imposed. If there is no illegal business volume or the illegal business volume is less than 50,000 yuan, a fine of not more than 10,000 yuan may be imposed.

Article 52 If an unregistered trademark is used as a registered trademark, or the use of an unregistered trademark violates the provisions of Article 10 of this Law, the local industrial and commercial administrative department shall stop it, make corrections within a time limit, and may It is notified that if the illegal business volume exceeds 50,000 yuan, a fine of not more than 20% of the illegal business volume may be imposed. If there is no illegal business volume or the illegal business volume is less than 50,000 yuan, a fine of not more than 10,000 yuan may be imposed.

Article 53 Anyone who violates the provisions of paragraph 5 of Article 14 of this Law shall be ordered to make corrections by the local industrial and commercial administrative department and shall be fined 100,000 yuan.