Why are anti-dumping measures frequently used in some industries,but rarely used in others ? The existing researches have not yet invested sufficient efforts in analyzing and interpreting the significant differences across industries in a country's anti-dumping actions . Based on the antidumping and industry-specific data of China,India and USA from 1997 to 2011,we set up empirical models to investigate how antidumping appeals and adjudications are affected by the heterogeneous properties of different industries .We constructed variables,including the trading competitiveness of industries,their productivity,market structure and political influence,to capture the heterogeneities,and adopted the panel regression methods of Poisson distribution and classified assessment .The empirical results indicate that : (1) The higher import penetration,the larger impact of imports on the industry concerned,which corresponds to an increase in the number of anti-dumping lawsuits and the passing rate of anti-dumping measures in adjudications .However,the higher export volume of trade,the lower passing rate in anti-dumping adjudications,that is,in anti-dumping ruling the administrative authority will take the issue of trade retaliation into account . (2) The higher productivity of the industry,the smaller impact of its imports,thus the lower number of anti-dumping lawsuits .However,the passing rate of anti-dumping adjudications indicates an inversed-U shaped relationship with industrial productivity .In other words,to protect the industries the anti-dumping ruling of the administrative authority must be weighed against the efficiency loss .When the efficiency of a particular industry is low,the administrative authority will reduce the willingness to protect;on the contrary,higher industrial productivity results in less necessity of anti-dumping protection . (3) The number of anti-dumping lawsuits has a U-shaped relationship with the degree of market monopoly .It turns out that the industry with more number of enterprises and more scattered distribution of their scales will suffer more from the impact of imports,thus the frequency of anti-dumping lawsuits will be higher . As industry concentration increases by numbers of enterprises decreasing,the crowding-out effect of import on small enterprises would increase the profit of leading enterprises,thereby reducing their willingness to file anti-dumping proceedings . When the degree of market monopoly is high,the crowding-out effect of import on small enterprises decreases,and leading enterprises will be faced with greater competition,thereby increasing anti-dumping lawsuits .The higher concentration of the industry possessing,the larger the political influence on administrative authority,and hence the higher passing rate in adjudications . (4) The political connections of an industry will not affect the frequency of anti-dumping lawsuits,but they will significantly increase the probability that the administrative authority may rule and implement anti-dumping measures .And such kind of results are not affected by national differences . This paper provides evidences and preliminary conclusions for further in-depth research on industrial factors which affect anti-dumping actions .It also provides a possible framework and a theoretical basis for export countries in terms of how to circumvent anti-dumping sanctions .