The imposition of anti-dumping duty is a significant approach for the government to secure trade and stabilize the development of domestic industry under unfair trade behavior at lower price. Nevertheless, there are no clear measures to identify industrial injury under WTO current system, so this result in the difference explanation to recognize the industrial damage among countries. The research discusses the industry effects and economic benefits of towel industry after the imposition of anti-dumping duty. The research adopts of Commercial Policy Analysis System (COMPAS) from United States International Trade Commission (USITC) to forecast and simulate the industry effects on imposition of anti-dumping duty, and analyze the effects brought to the changes in social welfare. In summary, the imposition of anti-dumping duty of towel industry creates positive protective effects on domestic sales price, production volume, company revenue, and market share. Public interests need to be accounted into consideration; and finding the balance on the imposition anti-dumping and the most optimal tariff; and the interests of domestic industries is essential to achieve the maximum national welfare.