Aiming at the problem of limited time sources for target recognition in the ballistic midcourse, an approach based on the linear intuitionistic fuzzy time series is presented. In this method, the linear intuitionistic fuzzy time series is represented as real-time fuzzy characteristics of ballistic target recognition information. Then the time series changing model for the target recognition results is constructed, which converts the target fusion recognition to the problem of optimum fitting between intuitionistic fuzzy variables, decreases the method complexity, shortens the recognition time and promotes the system efficiency. Finally, the experiments validate the effectiveness and superiority of the proposed method.