Hezheng(Gansu,China) mammalian fossil geoheritage is a geological wonder which is very rich in mammalian fossils. The Late Oligocene Dzungariotherium fauna,the Middle Miocene Platybelodon fauna,the Late Miocene Hipparion fauna,and the Early Pleistocene Equus fauna are the most representative in the Linxia Basin. The mammalian fossil geoheritage recorded the abundant information and the evolution history of the earth since Oligocene,revealed the outstanding witness of the Tibetan uplift. Hezheng(Gansu,China) mammalian fossil geoheritage with dense distributed, well preserved and a wide variety of mammalian fossils possess collection value,tourism value,popularization of science value and scientific value.