In pursuit of cost-effective and resource-saving applications for Ag paste, this study delves into the characterization of ordinary pure Ag paste, commercial PdAg paste, and WAg paste with varying tungsten content. The emergence of a secondary phase, Ag2WO4, at the grain boundaries was identified as the crucial anti-corrosion component. Experimental findings reveal that W doped Ag paste exhibit superior properties regarding anti-corrosion behavior, as evidenced by electrochemical polarization curves and weatherability tests. Furthermore, 2.5% W doped Ag paste achieves a comparable anti‑sulfurization standard to that of the 5% Pd doped Ag paste. Consequently, tungsten demonstrates significant potential for sulfide resistance, serving as a more economical material choice that not only lowers costs but also conserves resources for industrial applications.