The evolution history of the Weihe River and its tributaries is closely related to regional tectonic deformation and climate changes.Therefore,the genesis and temporal evolution of river terraces in the basin is an important scientific issue for studying the environmental evolution of the Weihe Basin.The loess magnetostratigraphy is generally used to obtain the relatively ages to terraces in the Weihe Basin.Although dust materials have covered a large area of the basin since the Quaternary,there may still be a certain time difference between the formation of river terraces and the final preservation of dust materials on the terraces.Although the regional comparison of loess—paleosol sequence can be used to infer the age range of fluvial stage,more absolute age methods are still needed to constrain it.Based on the comprehensive analysis of the formation ages and heights above river of the different tributary river terraces in the Weihe Basin, combined with the large-scale regional uplift and the Quaternary climate evolution sequence for comparison,it is found that not every important node of climate change corresponds to fluvial terraces,and the age spatial distribution of river terraces also has certain regional characteristics.Therefore,it is proposed that the evolution of rivers in the Weihe Basin is closely related to the potentials caused by tectonic movement and the release of these potentials induced by climate change.Above all,the river terraces in the Weihe Basin are mainly tectonic—climate cycle terraces under the combined action of large-scale tectonic uplift and climate change.Reconstruction of the evolution history of the fluvial system in the Weihe Basin is of great significance for a comprehensive understanding of the early formation and evolution of the fluvial system in the middle reaches of the Yellow River,especially for solving the dispute over the time when the Weihe River and the Yellow River run through the Sanmen Gorge.However,more reliable geological evidences and various analytical data of different rivers are needed to confirm and restrain them.