1. A trademark is a legal concept, which is protected by the trademark law. Once registered, the obligee enjoys the exclusive right to use the trademark. Brand is an economic concept.

2. For enterprises, there are usually only a few brands, but trademarks can choose to register a series of trademarks.

3. The function of a trademark is to associate goods with enterprises and play a role of identification. Brand is related to the overall image of the enterprise, but the relationship between trademark and brand is also very close. Enterprises usually register the brand as one of a series of trademarks.