Abstract: Using different volume concentration of 1-MCP-β-CD treating on the cut carnation in different time.According to vase life,appearance quality and the fresh weight of flower shoot,it indicate that using 50 mg/L of 1-MCP-β-CD in 7 cubic meters closed system for about 8 hours has the optimum quantity.To observe the appearance quality and physiological and biochemistry index of the cut carnation treating in these conditions,the results indicate that the treated flowers stayed turgid and the vase-holding life was longer compared with untreated flowers.In addition,the treated flowers by 1-MCP-β-CD can increase the relative permeability of plasmalemma and also have some effects on the concentration of chlorophyll.