Aqueous foam is widely used as a kind of stealth way in the scene of optoelectronic countermeasure. The existing optoelectronic jamming stealth technology has such problems as short acting time, single band and environmental pollution, which makes it difficult to effectively counter dual-mode and multi-mode precision guidance weapons. Aiming at the above problems, the aqueous foam formulation was studied. The extinction performance experiments of aqueous foam against visible light, infrared (3-5 μm, 8-14 μm), laser (1.06 μm, 10.6 μm), millimeter wave (3 mm, 8 mm) and centimeter wave (2 cm, 3 cm)were implemented. The shielding and interference effects of aqueous foam aiming at thermal imagery of 8-14 μm band were measured. The extinction mechanism of aqueous foam was discussed. The study shows that the curtain barrier formed by aqueous foam cloud or compositing with artificial fog is expected to acquire a new type of smokescreen weapon with the advantages such as full-wave band and environment friendly.