Two limnological sediment cores of 348cm and 860cm length recovered from Dahu Basin amid Nanling Mountains, the northern limit of south-subtropic in China, were physically and geochemically investigated, together with conventional and AMS 14C radiocarbon datings. Climate record in the longer core can be traced back to 48.8 cal ka BP. The common part of the two cores comprises record of the last 16k years reveals three worse hydrology periods which in timing correspond well to the three cold events during late glacial, namely Oldest Dryas, Older Dryas, Younger Dryas and demonstrates as well that early Holocene（10.0-6.0cal ka BP） experienced the most abundant precipitation, which is thought to be the Holocene Optimum in South China. The serial of dry events since late glacial detected here which in timing correlates well with global cold or dry events suggests tele-connections between Dahu Basin and world climate system. The linkage between Dahu Basin and global climatic system is probably Thermaline Circulation （THC） induced （or NADW, the North Atlantic Deep Water ）: on one hand, immediate connection between the Pacific and the Atlantic at tropical region where water vapor and heat is carried from the Atlantic to the Pacific across the low-lying Isthmus of Panama through Trade Winds; on the other hand, far-reaching connection between the Asian Monsoon and global climate system, the strengthening in deep-water formation would warm up the North Atlantic and this warm-up would be convoyed to the Eurasian continent by the Westerlies in spring and summer and reinforce the land-sea temperature gradient that drives the Asian monsoon.