Abundant mammal teeth fossils have been found in the Bishou Cave of Shangguan Town of Dongyuan County, Heyuan in the Dongjiang River Valley, south of the Nanling Range, China. We identified 6 new orders and 10 new genera and species of fossils, and furthermore named this area the Bishou Fauna. According to the palaeoecology indicated by the fauna, fossiliferous horizon, TL datings and the bio-stratigraphical correlation, it is preliminariely considered that like the Luoshayan Fauna in the Xijiang River Valley, the Bishou Fauna also belongs to the Late Pleistocene Ailuropoda-Stegodon Fauna, and they lived in the Interglacial Period of MIS5a. However, the age of Luoshayan Fauna about 79 ka B P, is slightly earlier than that of the Bishou Fauna, whereas the Bishou Fauna existed during the close of MIS5a between the Last Glacial and Last Lnterglacial Periods. The fauna is a first discovery in the Dongjiang River Valley, indicating a natural grassland environment on the northern margin of the torrid zone at that time.