Abstract: Because of the development of aviation material prediction, there are many kinds of prediction models for each kind of aviation material. The forecasting models of different models reflect the development trends of forecasting objects in different directions. Reasonably processing information can predict the demand trend of aviation materials more comprehensively. Fuzzy variable weight combination forecasting model is different from traditional combination forecasting model, it takes weight coefficient as triangular fuzzy number to combine different prediction model results, uses the criterion of minimizing the prediction accuracy index by single forecasting method, integrates processing to get narrower scope, which can help to forecast decision chain. Finally, an example is given to verify the validity and the accuracy of the model, which can help practical deployment.

Key words: material forecast, fuzzy variation weight, IOFWA operator, combination forecasting