In the inferior gasoline refining process, X, Y, L or beta zeolite through alkali or alkali earth metal ion exchange is used as adsorbent and Cl-C5 small molecular fatty alcohol, ether, ketone or their mixture is used as desorbing agent. During the refining process, inferior gasoline is made to contact with the adsorbent at 20-250 deg.c for adsorption, then the adsorbed refine oil is exhausted. Saturated adsorbent is sweeped with sweeping medium to eliminate the intermediate fraction and then desorbed at 20-250 deg.c for regeneration through contact with the desorbing agent. The said process is repeated, and through the said process the sulfur content in gaosline may be reduced to below 100 ppm, with the adsorbent being regenerated and reused.