Experiments on apparent resistivity,moisture content,density,compressibility,strength,collapsibility of unsaturated loess were performed in laboratory.Testing data were analyzed using correlation analysis model.The relations of apparent resistivity to moisture content,density,compressibility,strength,and collapsibility of unsaturated loess were analyzed using the factor analysis method.Results showed that the contribution of the apparent resistivity was greater than those of moisture content,density,compressibility,an collapsibility of unsaturated loess.