A series of AgX adsorbents were prepared by equal volume impregnation and ion exchange，respectively.The ad?鄄sorbent was characterized by chemical adsorption instrument（CO-TPR），Fourier transform infrared spectroscopy（FT-IR），solid ultraviolet visible（UV） diffuse reflectance spectrometer，X-ray diffractometer（XRD） and X-ray fluorescence spectro?鄄meter（XRF）.The alkane/olefin separation performance of the adsorbent was investigated on a small fixed bed adsorption and desorption reactor（200 mL） using simulated oil as the raw material.The results showed that compared with the ion exchangemethod，the olefin separation performance of the AgX adsorbent prepared by the impregnation method was better，the alkane/olefin separation degree was the highest and there was no tailing phenomenon.The olefin separation effect of the regenerated adsorbent was not significantly reduced as compared with the fresh adsorbent.