Anomaloustransportisoneofthemostimportantsubjectsforthetokamakresearch.Experimentshaveconfirmedthatanomaloustransportiscausedbyturbulencesdrivenbytemperatureanddensitygradientinplasma.Theexperimentsshowthationdiffusioncanbereducedtoneoclassicallevelinhighparameterplasmawithinternaltransportbarrier.