Aurcularia auriular-judae was modified for preparing adsorption agent by hydrochloric acid to adsorb Chromium(VI) in aqueous solurtion,the influence of the factors such as modified hydrochloric acid concentration,modifying time,modifying temperature,pH value of the solution,adsorlption time and temperature on the effect of the adsorption of Chromium(VI) by modified Auricularia auricular-judae is tested,the results show that the adsorption effect is better under the condition of 5% hydrochloric acid,35 temperature and 20 hours modification,however,under the condition of temperature 30 ,initial Cr(VI) concentration 20 mg/L,pH value 2.0,the amount of modified Auricularia auricular-judae 30,initial Cr(VI) concentration 20mg/L,pH value 2.0,the amount of modified Auricularia auricular-judae 2.5g/L and adsorption time 300 minutes,adsorption amount of Cr(VI) reaches 266 mg/kg,Lagergren first order kinetics model can better describe adsorption kinetics process of Cr(VI) in aqueous solution by modified Auriculatia auricular-judae.