Abstract: Efficient Cr（Ⅵ） adsorbent based on mat rush（Juncus effusus L.） was prepared in case of not being smashed, along with activated carbon（AC） particles being deposited on the rush surface. The adsorption behaviour was studied and adsorption curves were fitted by kinetics equations and isotherm models.The results showed that the dynamic adsorption met the pseudosecond order kinetics, which indicated that the adsorption rate was controlled by chemical adsorption. The adsorption isotherm was found to follow the Langmuir model rather than Freundlich model. The deposition of AC particles greatly enhanced the adsorption ability of the rush, in condition that the pH value was 1.0, the adsorbent dosage was 1.0 g/50 m L, and the oscillation time was 20 hours, an adsorption rate of 99.6% was obtained in the 100 mg/L Cr（Ⅵ） solution at 25 ℃.