Abstract: The thermal camouflage effect of aqueous camouflage foam is good. For even aperture and close hole of aqueous camouflage foam, a cell model and a heat transfer model were established using an effective thermal resistance method. Then the rationality of heat transfer model was verified by the experimental samples of aqueous camouflage foam. At last, the relations among effective thermal conductivity, frothing time and structural factor were analyzed, and the good ideas about the foam machine and frothing liquid were put forward. The heat transfer model based on effective thermal resistance method provides a theoretical basis of th research on the relations among heat transfer, interior structure and preparation technique of aqueous camouflage foam, which is very important for the latter.