Developing synthetic receptors for selectively binding cations,anions and small organic molecules have been attracted increasing attention due to their biological importance in the past a few decades.Foldamers,artificial analogues of biopolymers having a strong tendency to adopt well-defined conformation,hold great promise in this respect as hosts for biological interesting guests because of their dynamic internal cavities or channels.Recent reports demonstrated that the cavity or channel of foldamers could be used for molecular recognitions and supromolecular catalysis.We have long-term interest in the foldamer-based molecular recognitions,particularly,in anion recognitions.This is because anions play vital roles in the biological processes.Herein,I present our recent results on the preorganized oligotriazoles foldamers and its functions as anion receptors as well as anion transporter.