The development of hybrid materials with multiple uses by an eco-friendly method is becoming paramount in the field of materials science. The vapor-phase polymerization being an easy, cheap and environmentally friendly method is used to prepare cellulosepolypyrrole (Cell-PPy) hybrid membranes. These hybrid membranes are further deposited with silver nanoparticles through a UV-assisted photoreduction process (Cell-PPy-Ag). The hybrid membranes have been characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA), which reveals a consistent homogenous polymerization of pyrrole on the surface of the cellulose paper filter. The conductivity behaviors of the Cell-PPy (doped and undoped) and Cell-PPy-Ag hybrid membranes have also been investigated, and the obtained results reflect good conducting properties that can be utilized for the development of flexible electrochemical sensors and other biomedical applications. Furthermore, we investigated the antibacterial nature of the Cell-PPy-Ag hybrid membranes with both gram-negative and gram-positive bacteria, Escherichia coli and Staphylococcus aureus, respectively. In this research, we present a simple, eco-friendly, and cost-effective means of mass-producing dual-functional Cell-PPy-Ag membranes with conductivity and antibacterial property.