3D QSAR analysis for the 21 molecules of 1, 3, 4-oxadiazoles was carried out by using k- Nearest Neighbor Molecular Field Analysis (kNN-MFA) combined with various selection procedures. 30 3D QSAR models were generated; one of these models was selected on the basis of q2 and pred_r2 values. The selected Model has training set of 17 molecules and test set of 4 molecules with validation (q2) and cross validation (pred_r2) values of 0.6969 ...