The Dansgaard-Oeschger cycle has been extensively investigated in various geological archives,including ice cores, marine sediments and cave stalagmites. However, pattern and structure of the Dansgaard-Oeschger events appear to be quite different in different archives, suggesting different forcing mechanisms behind these regional climate changes. Here we further investigate character of DO3 in Asian monsoon climates by an annually laminated stalagmite from Central China. Stalagmite QT15 was collected from Qingtian Cave (31°20'N, 110°22'E, 1630m a.s.l.),which is located at Mt. Shennongjia, Central China. Qingtian Cave is about 50m in length, and overlain by 60~100m Permian limestone. The relative humidity inside is close to 100%. This site is predominantly controlled by the Asian Monsoon(AM),characterized by a distinct seasonal cycle of warm-wet summer and cold-dry winter. At the site, average annual temperature is about 7.4℃,with a maximum in July and a minimum in January. Mean annual precipitation near the cave is between 1500mm and 2000mm, about 80% of which falls during the rainy season when the Asian Summer Monsoon (ASM) prevails. Stalagmite QT15 is 285mm long, with a diameter from 70mm to 110mm. A hiatus at the depth of 68mm is visually inspected on the polished surface. Sample QT15 shows nearly straight horizontal layers perpendicular to the growth axis. These layers are composed of transparent and dark inclusion-rich calcite couplets. However, the Science,1999,284(5420): 1654-1657 couplets are not clear in the upper portion (above 68mm). Therefore, we only focus on the lower portion (68mm to 285mm) in this study. Ten sub-samples were collected along the growth axis with 0.9-mm-diameter carbide dental burs for ~(230)Th dating. The measurements were performed by multi-collected inductively coupled plasma mass spectrometry(ICP-MS) on a Fisher Thermo-Neptune spectrometer. All dates are in stratigraphic order with typical analytical errors (2sigma). For stable isotopic measurements, 435 sub-samples were drilled with 0.5-mm-diameter carbide dental burs along the growth axis. The analysis was conducted on a Finnigan MAT-253 mass spectrometer fitted with a Kiel Carbonate Device. Spatial resolution is 0.5mm, which yields an average resolution of about 5 years. Stable isotope measurements were reported relative to Vienna PeeDee Belemnite (VPDB) and with standardization determined relative to NBS 19. Precision of delta~(18)O and delta~(18)C values is 0.06 and 0.05 respectively, at the 1-sigma level. Based on a lamina chronology and 435 calcite delta~(18)O data for QT15,a detailed history of ASM from 29.4ka B.P. to 27.4ka B.P. is reconstructed. Two strong ASM events occurred surrounding 28.7ka B.P. and 27.9ka B.P.,which are correlated to Dansggard-Oeschger event 3 and 4 (DO3 and 4) in Greenland ice cores. During DO3, three phases of AM variability can be identified. During phase 1 (28.04~28.01 ka B.P.),the calcite delta~(18)O values decrease by about l within 30a, indicating an abrupt strengthening in the ASM, which corresponds to the abrupt Greenland warming at the onset of DO3.