Abstract:Aiming at the shortcomings of Analytic Hierarchy Process (AHP) when ascertaining the weighting, use the Triangular Fuzzy Number (TEN) to ascertaining the weighting. Established the new AHP model and validate the model by example. Compared the model with the standard AHP model, The results show that the improved AHP can deal with the uncertainty or fuzzy judgment, but there is more computation when there is a large number of sub element. The optimization is needed.