【Objective】 To discover suitable adsorbents of quinclorac and atrazine and to reduce injury to crops caused by their residues.【Method】 The methanol elutions of the adsorbents ( mixtures of soil and different adsorbents) containing quinclorac or atrazine were concentrated, and then analyzed by high-performance liquid chromatography.【Result】 When each adsorbent was used alone, the adsorption rates of active charcoals with different particle sizes (F280, F380, F580) to quinclorac and atrazine were all above 80% indicating excellent adsorption effects. When the adsorbents were mixed with soil, the adsorption rates of F580 active charcoal to quinclorac and atrazine were 73.85% and 59.49%, respectively, indicating relatively good adsorption effects.【Conclusion】 F580 active charcoal can absorb the residues of quinclorac and atrazine in water and soil, and it has great value for application and popularization.