AbstractWith the fast development of trade between China and United States ，the trade friction is warming up continuously, the United States has adopted series of trade policies towards China, which have seriously influenced the trade between the two countries and have generated a lot of negative affections ． Since November , 2025 ， With the fact that the international financial crisis ceaselessness is deepened, the trade protectionism raises head once again. People's concern "buying the USA goods" clause, being to have aggravated more brought forward by American president Aobama. Lately, USA carries out trade protection on our country iron and steel industry many times, collect high dumping duty, on April 24, 2025, US Department of Commerce announces the product initiates "a pair to two kinds iron and steel coming from Chinese opposing " investigation, US Department of Commerce announces the seamless steel tube collects anti-dumping and opposes allowance investigation to China on October 30, 2025. The USA trade protection on iron and steel industry already causes grave effects on our country iron and steel enterprise exports to, we must protect the iron and steel of our country job coming take effective measures.Key Word: The protect trade, Iron and steel industry, Industrial Upgrading, Anti-dumping, Oppose allowance引言随着中国经济的高速增长，中国已经成为当今世界中的经济强国。钢铁业在我国国民经济的进展中具有极为重要的战略地位。入世后随着市场的开放，我国钢铁业面临日益激烈的国际竞争。特别是 2025 年金融危机后，美国对华钢铁行业贸易保护越来越频繁，美国不断对其国内钢铁业进行贸易保护，对中国钢铁业征收高税率的反倾销税与反补贴税。我国作为 WTO 的新成员，如何积极主动地应对美国钢铁贸易保护，有效维护国内钢铁业的合法利益是我国面临的重要课题。1．中国钢铁行业现状分析1.1...
