The past 2ka was an important period for studying climate change. The study of the Medieval Warm Period, the Little Ice Age and the Modern Warm Period have attracted much attention. However, many studies disagree on the climate conditions that prevailed during the key phases. Yuhua Mountain(27°50'27~27°50'33.51N,115°38'51.22~115°38'57.84E) is a part of the warm and humid subtropical monsoon climate region. The annual average temperature is 18℃,with the maximum temperature (39.5℃) in summer and the lowest temperature (-9.2℃) in winter. The annual precipitation is 1500~2000mm, with 3~6 months of rainy season. Two peat cores,210-cm-long peat core YHS1 (27°50'30.27N,115°38'54.23E) and 350-cm-long peat core YHS2(27°50'29.44N,115°38'54.98E),were drilled from Yuhua Mountain at the middle of Jiangxi Province in 2014. We used multi-proxies including grain-size,humification,loss on ignition (LOI), Rb/Sr,Zr/Rb, Concentricystes and the pollen percentage of the trees and upland herbs. 18 samples were selected for AMS ~(14)C dating. The age-depth model in this paper was established by Bayesian Analysis. The deposition rate of the core above 312cm was very fast,but took a big drop when it went deeper. Here we only studied the climate changes in the past 2000 years. Combining with Concentricystes changes, we analyzed the grain-size composition. The results showed that the grain sizes were coarse during 0~600A.D. and 1400~1900A.D.,while those of 600~1400 A.D. and 1900~2000A. D. were fine comparatively,indicating a change from an active lacustrine environment to stagnant marsh condition. Combining with the multi-proxies of pollen,grain-size, humification,LOI, Rb/Sr and Zr/Rb, we found there were five climate phases during the past 2000 years: (1) during 0~600 A.D.,cold and wet climate was characterized by high values of humification, LOI, Zr/Rb, pollen percentage of trees,coarse grain sizes and low values of Rb/Sr,pollen percentage of upland herbs; (2) during 600~850 A.D.,which is the Sui and Tang dynasties with warm climate. Low humification,LOI, Zr/Rb, fine sediment sizes and a little lower percentage of trees than period 1 indicated a warm and dry climate in this period; (3) during 850~1400 A.D. (MWP),the climate fluctuated,but as a whole it was warmer than the phase 2; (4) during 1400~1900A. D. (LIA),the whole climate tendency was dry and cold by high values of humification, LOI,Zr/Rb, grain sizes,percentage of upland herbs pollen and low values of Rb/Sr, percentage of trees pollen. (5) during 1900~2000A.D.,low humification, LOI,Zr/Rb, high Rb/Sr, fine grain sizes, high percentage of trees pollen and low percentage of upland herbs pollen indicated a warm and wet climate(the Modern Warm Period). The comparative analysis shows that the climate change of the study area respond to the eastern monsoon region climate trends in the past 2ka.