a (1) has the function of distinguishing the source of goods or services. The use of trademarks can distinguish the most important and essential functions and sources of different goods or services, and guide consumers to recognize brands for shopping or consumption. In modern society, there are hundreds of manufacturers of the same commodity, and services with the same performance abound. Which commodity or service do consumers choose? Trademarks can help consumers achieve the purpose of identification. As a trademark is the' face' of goods or services and represents the reputation of producers or operators, trademarks can play a role in guiding consumers to obtain satisfactory goods or services. (2) It can promote producers or operators to improve the quality of products or services. The quality of goods or services is the basis of brand reputation. While guiding consumers to recognize brand consumption, it also urges and urges producers or operators to strive to improve the quality of products or services in order to safeguard their trademark reputation. A registered trademark interacts with the designated goods or services, and the reputation of a trademark can reflect the quality, and the stability of the quality can also improve the reputation of the trademark. Consumers can have a sense of consumer trust in their minds after spending a certain brand of goods or services repeatedly for a long time. If there is no trademark, consumers will have countless hearts when they consume, and even if they are deceived, there is nowhere to find them. Goods or services that use registered trademarks increase customers' sense of security for consumption items. Even if their consumption is damaged, they can quickly find the source, file a claim and recover the losses. Although a trademark is not a sign of the quality of goods or services, it can make consumers continue to recognize the brand consumption through the consumption practice of goods or services with the same trademark. Therefore, registered trademarks have played a role in ensuring stable quality and promoting quality improvement to a certain extent. (3) Conducive to market competition and advertising. Trademark is a sharp weapon in business war and a pioneer in opening up the market. The economic development of a country or region can be seen through the number of registered trademarks and the number of well-known trademarks. Because trademarks represent reputation and quality, reputation and quality are related to market share; The greater the market competitiveness, the higher its economic benefits. Therefore, trademarks are a sharp weapon in business wars. In order to open a market for a commodity and be recognized by consumers, in addition to ensuring the reliability of quality, we must also advertise through the focus of trademarks to stimulate consumers' desire to buy, so that consumers can know the commodity in the quickest way. From this perspective, trademarks are pioneers in opening up markets. (4) Trademarks are intangible property and the carrier of reputation. Based on reliable product quality, its brand name will be widely spread and appreciated continuously, and the economic benefits of enterprises will be better and better. Even the administrative division name of its place of origin is unknown, while its trademark name is widely known. In this sense, registered trademarks are priceless and intangible wealth.