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The Altyn Tagh range is the tectonically and geographically northern edge of the Tibetan Plateau,precise dating of its activities is essential for understanding the possible mechanisms of the Tibetan Plateau uplift and its effects on climate changes.Under the framework of basin-mountain coupling,both magnetic susceptibility and rock magnetic research were carried out on the Late Cenozoic sediments of the Honggouzi section(~17-5 Ma)in the western Qaidam Basin.The study attempts to find out the evolution history of tectonic and climatic changes and to detect their interactions in the Altyn Tagh range.