Supportability assessment is an important job in the Aeronautic Equipment's entire life cycle and it is a certification of the working effect of Integrated Logistics Support of aeronautic equipment. But in the supportability assessment of the aeronautic equipment , there are such problems as the redundancy of information , an unnecessanly wide range of time and space scope , and a lack of accuracy. With the first ever introductn of informatlOn fusion m supportability assessment and the analysis of the suitability of information fusion in supportability assessment , this paper researches into the rules and fusion models of information fusion in supportability assessment and puts forward a brand-new strategy model of supportability information fusion. So , this paper has practical value in improving the accuracy of aeronautic equipment supportability assessment results and in pushing on the development of supportability assessment.