Legal analysis: 1. It must be a trademark with good product quality reputation. The quality and reputation of goods are the fundamental prerequisite for a well-known trademark.

2. A trademark well known to the public. This condition indicates that a well-known trademark is a trademark or famous trademark that is generally known to consumers and operators, or a trademark that enjoys "significant prestige."

3. A trademark that enjoys a reputation within a considerable geographical area.

4. Trademarks that have been selected by consumers and recognized by specific authoritative organizations.

Legal basis: "Regulations on the Recognition and Protection of Well-known Trademarks" Article 7 Application for a well-known trademark in China should have the following conditions:

(1) It must be a trademark with good product quality reputation. The quality and reputation of goods are the fundamental prerequisite for a well-known trademark.

(2) Trademarks well known to the public. This condition indicates that a well-known trademark is a trademark or famous trademark that is generally known to consumers and operators, or a trademark that enjoys "significant prestige."

(3) A trademark that enjoys a reputation within a considerable geographical area.

(4) Trademarks that have been selected by consumers and recognized by specific authoritative organizations.