反托拉斯法是控制垄断活动、保护竞争的工商管理法规的总称。1889年加拿大的《禁止限制性贸易的合并法》是世界上第一部反托拉斯法,但一般认为美国1890年的《谢尔曼法》是世界各国反托拉斯法的滥觞,尔后迄今已有近40个国家制定了各自的反托拉斯法。美国的反托拉斯法主要是美国国会根据宪法授予联邦 Antitrust Law is a collective term for the control of monopolistic activities and the protection of competition. In 1889, Canada’s “Law on the Prohibition of Restrictive Trade” was the first antitrust law in the world. However, it is generally believed that the U.S. Sherman Act of 1890 was the very beginning of the antitrust laws of various countries in the world, Forty countries have their own antitrust laws. The antitrust laws of the United States are mainly granted to the Federation by the U.S. Congress under the Constitution