Aiming at the lack of a set of scientific, systematically applied to aviation equipment, including aircraft, engines and missiles repair factory quality competitiveness evaluation system, using system engineering theory and process analysis method, from the quality system, quality support ability, operation ability and quality performance ability quality four aspects to build the covers, 60 tertiary index of 19 two class quality competitiveness evaluation index system. At the same time, an evaluation method based on the G1-expert combination of multiple relevant weights is proposed to comprehensively integrate the intention of decision makers or experts to form a set of standardized weight coefficients. Finally, according to the evaluation criteria, the repair factory was evaluated by experts and fuzzy evaluation, and further analysis was made. Through the pilot evaluation, the rationality of the index system and the feasibility of the evaluation method are verified, which has certain guiding and referential significance for the aviation repair plant to improve its quality competitiveness.