To prolong the shelf life of the sweet potato leaves, 12 h fumigation postharvest treatments was performed with 1 μL/L 1-methylcyclopropene(1-MCP), then was packed by microporous polyethylene(PE) bags (8 holes, the pore size of 0.3 mm) and stored at 4 ℃. The quality changes during the storage were analyzed. The results showed that 1-MCP treatment and micro-porous films could inhibit the increase of respiration intensity, the relative electric conductivity, polyphenol oxidase(PPO) activity and peroxidase(POD )activity. Besides, the composite packaging also reduced the decreasing of chlorophyll content, Vc content , catalase(CAT) activity and superoxide dismutase(SOD ) acticity and the decay rate. As a result, the composite packaging extended the shelf life of sweet potato leaves.