Abstract: The physical and chemical properties and fertility of soil planted with asparagus（TW） and soil not planted with asparagus（TB） were characterized by Fourier transform infrared spectroscopy（FTIR）,X-ray diffraction（XRD） and X-ray fluorescence spectroscopy（XRF）,in order to provide reference for asparagus crop rotation patterns.The results showed that the main mineral phase composition was kaolinite dominated by SiO₂,and the main components were SiO₂,Al₂O₃,Fe₂O₃,K₂O,MgO,CaO,etc.The structural characteristics of the soil before and after planting asparagus did not change significantly.Fertility studies on TW and TB showed that the water content of TW increased compared to TB,while pH did not differ significantly, except for the soil of 4 in Dejiang Shaxi with high woody richness, the contents of SOM,CEC,total N,total P,alkaline decomposed N and avaiable P in TW increased compared to TB;the contents of total potassium decreased compared to TB in TW except for the soil of 2 in Dejiang Shizhuya.The trend of fast-acting potassium was higher than that of TB in Dejiang Shizhuya No.1 and No.2 TW,while the other soils had the opposite content of fast-acting potassium, indicating that planting asparagus had improved soil fertility to some extent.The clustering analysis revealed that Y1 and Y3 had the same taxon of Chitonaceae forest, Y2,Y5 and Y6 had the same taxon of mixed woody-shrub forest and pine forest, while Y3 had the same taxon of mixed woody forest, which showed that both woody type and woody richness were important factors affecting soil fertility.This study could provide data to support the exploration of the phenomenon of continuous crop barrier in aspen and the selection of crop rotation.