Abstract: Now，academic circles nearly see polemic interpretation during the period of Anti-Japanese War as a pure science theories，while ignoring the controversy of profound heterogeneous connotation and political content.Actually，in the debate of the Three People's Principles，on the one hand，it's true that the CPC from the academic significance refuted Ye Qing's erroneous views，and deepened the understanding ofMarxism and the Three People's Principles；but on the other hand，the CPC had a political task with internal demands and ideology of value orientation，so as to narrow the academic level of vision，limiting its theoretical expansion.In a word，the polemics had a strong practical concern of political consciousness.