Located in the marginal belt of the southeast monsoon, Daihai Lake has always been one of the most significant areas in the paleoclimate studies-After synthesizing the environmental multi-proxies, such as TOC, δ¹⁴C_org, carbonate contents, frequency dependent susceptibility and ostracode fossils of sediment core in Daihai Lake, and combining the lithological characteristics of the sedimentary core with ²¹⁰Pb dating, the paleoclimatic evolution of this region since the beginning of the Little Ice Age(LIA) has been preliminarily reconstructed-Six stages of climate change, with fluctuation on temperature and precipitation, are divided as following (1) In the early stage of the Little Ice Age(740-540aBP), cold and wet climate.(2) In 540-480aBP, cold and arid climate.(3) In 480-370aBP, cool and wet climate.(4) In 370-220aBP, cool and arid climate.(5) In 220-130aBP, cold and arid climate.(6) From 130aBP to present, warm and wet climate.The comparisons between climate characteristics in this region and that of other regions in China have also been carried out elementarily-Different from the cold arid climate in the middle and lower reaches of the Huanghe River during LIA, the LIA climate in Daihai Lake was cold and humid, similar to the coresponding climate in the northwestern China The situation of precipitation during the LIA may suggest that this region belonged to transitional type between the northwest area of China and middle and lower reaches of the Huanghe River in climate change-Furthermore, the last two cold periods recorded by the lacustrine sediments in Daihai Lake (DH core) are in good agreement with two cold periods, namely 1450's-1510's and 1790's-1890's, which was inferred from ten-year-average temperature by tree rings, ice core and historical literature.