MC/WG edible films with different glycerol content were prepared by casting, and the effect of glycerol on properties of the film was studied. The results showed that the tensile strength (TS) of the edible film decreased with addition amount of glycerol; and the elongation at break (E) and water vapor permeability (WVP) of the film increased; transparency (T) of the film first raised and then reduced. T reached the max at 1. 25% ( V/V). 1. 25% glycerol content is the best from comprehensive comparison of the properties of the edible films.