Table 1: Supplier Evaluation Criteria Table 2: Supplier Selection Methods Table 3: previous Studies about Supplier Selection Which Used ANN and ANFIS Table 5: test data and Their Outputs in both Methods and actua Table 6: Comparing the Outputs of the Two Methods Using Method Evaluating Criteria Figure 5: The Structure of the Layers and Functions of ANN Table 8: The Selected Suppliers in Both Methods Figure 5: R-squared value of ANFIS and ANN