【英文摘要】Research in Chinese loess has achieved a great success in East Asian Monsoon and global climatic change, it has also revealed a positive relationship between magnetic susceptibility of loess paleosol sequences and paleoclimatic warm and humidity (paleosol pedogenic development). The magnetic susceptibility now has became a regular parameter widely used by Quaternary scientists, but at the same time following quite a few questions reported. However in Siberia, Kurtak loess stratigraphy exhibits a negative relation, providing a excellent profile for comparison. In order to correctly recognise and reconstruct paleoclimate, this research is going to measure various climatic proxy from sections in Siberia for the last interglacial cycle for searching mechanism of the location responding to westley and winter monsoon and its relationship with the Loess Plateau. In addition, by comparing magnetic properties of loess and soils in both Siberia and Loess Plateau, the main aim is to exam the mechanism of the susceptibility as a proxy of summer monsoon, in order to find out the reason why magnetic susceptibility corresponding to pedogenic developement shows completely different in these two locations. This study is going to research suitable ranges for positive, negative and no relations, its results will guide the susceptibility users how to correctly apply this parameter as a climatic proxy - - one of most basic scientific problems within paleoclimatic environmental research over the world.