The Central Plains is the core area of civilized origin of China, which is across the northern subtropical and warm-temperate monsoon climate zone in East China and is sensitive to global changes. But the area has always been lack of high-resolution studies on environmental evolution during the Holocene. Pre-study of the project found that peat deposits in the Huixian County of northern Central Plains is continuous and natural sediment in the early-mid Holocene, and which is satisfactory materials for the study of high-resolution environmental changes for providing good information on past climate and regional environmental evolution. So in this project, the peat deposits from the Huixian County are chosen as study materials, and the exact age frame is established using AMS 14C dating. Then the high-resolution climate change sequence during the early-middle Holocene is reconstructed in the Central Plains through high-resolution multi-proxy records including pollen, total organic carbon, total nitrogen, organic carbon isotope, grain size and magnetic susceptibility. And the chronology, changing process, environmental features and regional characteristics of main climatic events during the early-middle Holocene are also identified. At last, the above results are contrasted to other high-resolution records, environmental archaeology and simulation results to probe into mechanism of environmental evolution and abrupt climate events during the early-middle Holocene in the Central Plains, to provide basic information for the studies on regional responses to global changes in monsoon region of east China and scientific basis to climate prediction, also to lay the foundation for the study of regional Neolithic human-land relationship.