To the question of threat assessment in ELC plane's control and command system(CCS), a threat assessment method based on compensator intuitionistic fuzzy neuro system（CIFNS）is proposed. By this algorithm the dynamic information is combined with the static information of the targets and the fuzzy discursion is generalized to intuitionistic fuzzy reasoning, simultaneously, the network structure and judgment model of threat assessment based on CIFNS are founded. The corresponding algorithm of network study is proposed .The simulation results demonstrate that the algorithm based on CIFNS has high convergence speed and good adaptability when applied in the evaluation of CCS.