文对近一百多年来美国对国外势力宣传游说的规制进行了梳理，其脉络清晰地显 示，早期美国立法阶层秉持政治正确观念，将外国势力分为朋友和敌人，对不同政见的 国外势力抱着排斥的态度，用“外国朋友法”、“外国敌人法”、“煽动法”等对其进 行制裁。但随着和平时期的到来，美国政府在一定程度上改变了不同政治观念对抗的认 知和态度，对不同意识形态的外国势力外国代理人实施了登记法和活动公开法，让宣传 游说者无论是在收受经费方面还是在经费使用的去向方面都有很高的透明度。制订的法 律有：“外国代理人登记法”、“游说公告法”、“正直领导和开放政府法”等。

This article sorts out the United States' regulation of the propaganda and lobbying of foreign forces over a hundred years, which clearly shows that the early American legislative class believed in the political right concept, divided foreign forces into friends and enemies, took a rejective attitude towards foreign forces with diverse political standpoints, and imposed sanctions against them by using the Alien Friends Act, the Alien Enemy Act, and the Sedition Acts. However, as stepping in peacetime, the United States government has changed its cognition and attitude towards confrontational political concepts and implemented the Registration Act and Open Activity Act for foreign agents of different ideologies in some degree so that there could be a high transparency in both ways of propagandists receiving funds and using them. The enacted laws include the Foreign Agents Registration Act, the Lobbying Disclosure Act, Honest Leadership and Open Government Act and others.