In this research, lead tungstate nano powders were prepared by a facile method. To find the optimal conditions for the fabrication of lead tungstate nano powders, the role of some preparation parameters was evaluated. Outcomes of this investigation displated that the size and morphology of lead tungstate nanoparticles were largely affected by the studied parameters. The as-prepared lead tungstate nanoparticles were characterized by FT-IR, FESEM, EDS and XRD. Based on the obtained outcomes, it was found that with the aid of this method can be synthesized sphere-like lead tungstate nanoparticles with proper homogeneity. Also, the photocatalyst activity of as-produced lead tungstate nanoparticles was examined by degradation of the organic contamination under visible light.