As multi-band detection technology advances significantly, the survival of weaponry is confronted with unprecedented challenges. Multi-band compatible stealth materials, particularly those enabling infrared/visible stealth, serve as the key of stealth technology. The widest-used metal-based infrared/visible compatible stealth materials in practice demonstrate a trade-off phenomenon between low infrared emissivity and low visible reflectivity. Sole reliance on simple composition design is unable to overcome this fundamental performance constraint. This study proposes a novel closed-cell plasmonic stealth (CC-PS) metamaterial that achieves infrared/visible stealth while maintaining a high content of low-emissivity constituents. The CC-PS metamaterial synergistically achieves performance decoupling of negatively correlated properties through internal light-trapping cavities and nanoparticle plasmonic resonances. The closed-cell design minimizes material emissivity by suppressing infrared absorption from pore-induced diffuse reflection and internal heat conduction to the surface. A series of infrared/visible compatible stealth materials, adaptable to diverse background environments, have been fabricated through facile modulation of plasmonic particle concentration and thickness. The CC-PS metamaterials achieve a 16.1 % visible reflectance with infrared emissivity of 0.27. The closed-cell plasmonic metamaterial enables multi-band stealth compatibility through spectral-selective microstructural control, overcoming conventional material limitations and demonstrating promising dual-spectrum camouflage applications.