Three typical mooncake packaging were selected randomly, and the mooncake net weight of each packaging is 1 kg. Based on life cycle assessment theory, the consumption of resource and energy was analyzed in the whole life cycle, which is from the raw material obtaining, manufacturing, sales, use to the final disposal, and the environmental impacts generated by them were assessed. The result showed that the more plastic material contained in mooncake packaging, the higher environmental impact would be engendered. The usage of plastic should be reduced in mooncke packaging, and the mooncke packaging should be developed towards reduction and light weight.