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In order to improve the identification ability of air targets, a comprehensive identification method of air target based on intuitionistic fuzzy set and evidence theory is proposed. This method adopts the idea of multi-attribute decision-making to solve the problem of air target comprehensive recognition. Firstly, the problem of air target comprehensive identification is described by referring to the advanced practice of the U.S. military. Then, the multi-attribute decision-making modeling is carried out for air target comprehensive identification, the attribute weight and expert weight are calculated by combining AIFS cross entropy, conflict coefficient and evidence distance, and the evidence discount method is used to modify and fuse the evidence in aggregation process of attribute information and expert information.Finally, an example is given to verify the feasibility of the proposed method.