Aiming at the influence of the intelligence processing task and the intra-system processing units combination model on the system effectiveness of the aerospace electronic countermeasure reconnaissance (AECR) information processing system, an effective evaluation method of AECR information processing system based on queuing network model is proposed. The basic architecture of the AECR information processing system is analyzed. The effectiveness evaluation index system is put forward. The performance evaluation and simulation analysis of AECR information processing system is carried out by using queuing network theory. The evaluation results show that it is feasible to apply the queuing network theory to the AECR intelligence processing system, the performance of the different intelligence processing unit combination mode is different for the same intelligence processing task, and the same intelligence processing unit combination mode is different The performance of the information processing tasks is different.