Abstract: This paper present a systematic study of environmental evolution characteristics in southern suburb of Xi'an area since Holocene. Based on the establishment of the loess-paleosol sedimentary sequence since Holocene in the study areas, analyzing the vicissitudes law of the East Asian winter and summer monsoon, providing the evidence for revealing the interference of human activity on the ancient environment in Xi'an area. In the southern suburb of the Xi'an area Shaolingyuan as example, TFPW-MK mutation test and sliding rank sum test are used to analyze the variation of the magnetic susceptibility sequence and concluded the change trend. The results show that:1)the southern suburbs of Xi'an Shaolingyuan magnetic susceptibility sequence at about 3200a B.P. mutations and it has a high degree of variability.2)the content of the study area of loess pollen also has a greater degree of change, revealing that the ecological conditions of the paleo-environment has been deteriorating. Therefore, it can be used to provide the basis for the improvement of the Loess Plateau by the law of the environmental evolution and human activities revealed in this paper.