Abstract. In order to evaluate support effectiveness of aviation equipment in development stage, which is based on multi-quality characteristics design analysis models instead of statistical data in operational stage, a method of model integration was studied in this paper. On the basis of support effectiveness evaluation model and simulation, reliability model, testability model and maintainability model can be integrated into support effectiveness evaluation model with integration method proposed in this paper. With support effectiveness evaluation in development stage, multi-quality characteristics problems can be found and solved early to improve operation capacity of aviation equipment.