We collected the roots and rhizosphere soil samples from four different sites (Ganquan,Suide,Mizhi and Yulin) on the Loess Plateau in Shaanxi.The spatial distribution of AMF colonization,spore density and glomalin in the rhizosphere of Amorpha fruticosa were investigated,and their relationships with soil factors were analyzed.The result showed that:(1)The average AMF colonization rate from Suide was the highest of all the samples,which was up to 100%,and the lowest colonization rate was 75.02% from Mizhi.The spore density from Mizhi was higher than that of other samples,and it was 5.91/g.The lowest spore density was from Yulin,and it was 1.57/g.The highest spore density existed in the 0～10 cm layer of all samples,and with the soil depth increasing,the spore density decreased.In different regions,the differences of the AMF colonization rate and spore density were notable.The rate of AMF colonization did not correlate significantly with the spore density.Soil organic carbon (SOC),ammoniaN,olsenP,urease and alkaline phosphatase from Yulin were significantly higher than those of other samples.Except for the sucrase from Mizhi and Suide and alkaline phosphatase from Ganquan,in 0～10 cm layer,the activities of most soil enzymes and glomalin reached the maximum,and declined with the increasing soil depth,which had a significant differences among the different layers.(2)AMF colonization had a significant positive correlation with SOC,nitrateN,olsenP,and it had a very significant positive correlation with pH,totally extracted glomalin related soil proteins (TEG) and easily extracted glomalin related soil proteins (EEG).Spore density had a significant positive correlation with olsenP,sucrase,urease,and had a negative correlation with ammoniaN.TEG had a very significant positive correlation with EEG.(3)Principal component analysis (PCA) showed that the cumulative variance proportion of PCA1 and PCA2 were up to 56.4%.PCA1 contained glomalin,the AMF colonization rate and spore density.PCA2 contained pH and some soil factors.Therefore,the soil environment was mainly decided by these factors.