<p>Understanding elevation-dependent warming is essential for assessing risks to the cryosphere and water resources in mountainous regions. However, warming patterns above 5 km a.s.l. on the Tibetan Plateau are poorly understood due to data scarcity. Here, we integrate station observations with 12 ice core δ¹⁸O records to reconstruct annual and summer temperature records for the westerlies-dominated Tibetan Plateau since the 1950s, and systematically evaluate the three-dimensional structure and seasonal differences of elevation-dependent warming. Our results reveal a clear pattern of elevation-dependent warming in annual mean temperature between 2 and 7.5 km, primarily driven by snow albedo and cloud feedbacks. In contrast, summer temperatures show no elevation-dependent warming due to the competing effects of multiple feedback processes. Furthermore, we identified a warming peak between 2.5 and 3 km driven by radiative forcing and sensible heat, and muted warming between 6 and 6.5 km due to cloud-radiation-glacier feedbacks.</p>