Saline deposits in Pliocene distribute in the Western Qaidam Basin, the Kunlun Mountains' and the Northern Tanggola Range, but those in Late Pleistocene-Holocene Epoch widely distribute in Northern Xizang and the Qaidam Basin. Salt lake deposits arc characterized by interbeded evaporatic and clastic sediments with lacustrine facies deposits under inland, dry/wet alternating climatic and unstable shallow water circumstances. 62 saline minerals have been discovered as of now. There exist several separation stages. The beginning age of the self-separation:stage of salt lakes of Late-Pleistocene-Holocene Epoch in the Qinghai-Xizang Plateau arc 24000 a B.P.and 9000 a B.P. respectively according to ^l4C dating. Potash salt and borate have two typical mineral assemblages respectively. Abundance of mineral resources of salt lake is one of the material bases for the development of this district.