Pullulan, gelatin and chitosan were used as composite coating films. Strawberries were coated with the composite coating in nine ratios by orthogonal experiment and the weightlessness index and rot index of strawberries were measured under normal temperature. The experiment showed that when the ratio of the pullulan/gelatin/chitosan composite edible coating film was 2.5:1.5:1.25, its effect of preservation on strawberries was the best. Meanwhile, coating films of five different concentrations in the best proportion were also applied to pack stawberries, and the weightlessness rate, rot rate and storage period of strawberries were measured. The result showed that the preserving effect of coating with 5.25% complex coating regent was the best.