Porous emulsion-templated polymers (polyHIPEs) exhibit highly interconnected porosity and specific surface area, making them attractive for applications in tissue engineering, catalysis, water remediation, and energy storage. Noble metal nanoparticles, such as gold (AuNPs) and palladium nanoparticles (PdNPs), are widely used for their catalytic, electronic, and biomedical properties. However, conventional methods for incorporating these nanoparticles into polyHIPEs often require toxic reducing agents, multi-step procedures, and offer limited control over nanoparticle distribution. In this study, we report a facile one-step approach for preparing polydopamine (PDA)-coated polyHIPEs functionalised with AuNPs and PdNPs under mild basic conditions at room temperature. PDA serves as both a reducing agent and an adhesive layer, enabling uniform nanoparticle deposition while preventing aggregation. The process was conducted with four different concentrations of Au and Pd precursors, allowing controlled variation in nanoparticle density. The resulting material demonstrated high stability, well-distributed nanoparticles, and structural properties suitable for potential applications, in catalysis, sensing devices and tissue engineering. This environmentally friendly strategy provides a simple and scalable method for functionalizing porous polymers with noble metal nanoparticles, expanding the scope of polyHIPE-based materials for sustainable and biomedical applications.