Abstract: Ice Core information of EEC Greenland Ice Plan(GRIP) has revealed the rapid climatic change during the last interglacial age. However, no evidence of this change was found in the United States Greenland Icecap Plan (GISP2).The study of substitutive paleo climatic index from several sections in Loess Plateau suggests the existence of large climatic fluctuations during last interglacial age, especially in its early stage, which agrees with the result of GRIP. It is shown that the loess in China which contains climatic information characteristic of the polar area and the northern Atlantic provides the ideal record for global change analysis.