In the past evaluations of equipment system effectiveness, the primary focus was on the technical capabilities of the equipment, while the influence of human factors on equipment effectiveness was overlooked. Based on the analysis of the efficiency characteristics of the aviation equipment system and in response to the requirements of equipment type-certification/evaluation tests under the new circumstances, a method for evaluating the improvement of equipment system efficiency based on human factors is proposed. A human factor coefficient model for evaluating the effectiveness of aviation equipment systems is established, which effectively addresses the issue that human factor influences were not comprehensively considered in previous system effectiveness evaluations. Consequently, the results of equipment system effectiveness evaluations are more in line with the actual field applications by the military forces.