1. It is definitely illegal for producers of counterfeit products to counterfeit the names or logos of other manufacturers. This is typical counterfeiting behavior. 2. Counterfeiting means that in order to gain a competitive advantage, producers or operators improperly use other people’s marks on their own goods or business marks, confusing their own goods or business with those of others, and seeking unfair profits. behavior of interest. Specific manifestations include the unauthorized use of other operators' unique and well-known registered trademarks, product packaging, decoration, names or various quality marks, leading to consumer confusion and market chaos. Americans call this behavior the free-riding behavior of "reaping without sowing". It causes the interests that should belong to legitimate operators to be obtained by unfair competitors, which is extremely harmful to market competition. Broadly speaking, counterfeiting includes counterfeiting of products, quality, price, advertising, and all external signs representing corporate goods or corporate goodwill. Counterfeiting in a narrow sense only refers to the behavior of operators counterfeiting other people's registered trademarks, packaging, decoration, names, quality marks, origins, etc. on their goods or product packaging. Article 5 of my country’s Anti-Unfair Competition Law stipulates counterfeiting behaviors including trademarks, product names, packaging and decoration, company names, product quality marks, etc., but does not involve other counterfeiting behaviors in a broader sense. 3. The illegality of counterfeiting First, counterfeiting is an act that disrupts the economic order of our country. It is socially harmful and is the most essential feature of illegal acts. The reason why counterfeiting is illegal is essentially because it is socially harmful. Its social harm is mainly reflected in three aspects: 1. Endangering the healthy development of the socialist market economy; 2. Violating the market transaction rules of voluntariness, equality, fairness, honesty and credit and recognized business ethics; 3. Damaging competitors and consumers the legitimate rights and interests of the person. Second, counterfeiting is an act that violates the law and is administratively illegal. The behavior of operators that violates business ethics and even causes social harm in commodity economic activities is ever-changing and diverse, which is determined by the attributes of the commodity economy. Selectively regulating counterfeiting as an illegal act makes counterfeiting not only socially harmful but also administratively illegal. Third, counterfeiting is an act that is subject to administrative penalties and is punitive in nature. Any illegal behavior shall bear corresponding legal consequences and be subject to corresponding legal penalties. Counterfeiting is a violation of the Anti-Unfair Competition Law and should also bear the legal consequences of administrative penalties. The punitive characteristics of illegal acts and the specific application of administrative penalties are two legal concepts with different connotations and extensions. The former is the boundary between "legal" and "illegal", and the latter is the specific application of administrative penalties for illegal acts.