Nanotechnology positions as a new armament in our collection against the increasing challenges in disease management and plant/human health. The application of nanotechnology in plant/human disease administration, diagnosis, and genetic transformations is still in its early stages. Apart from the scope of this chapter, there is also a mounting collection of new tools and techniques where nanoparticles are employed as delivery vehicles for genetic material in plants. Due to their nanoscale dimensions, nanoparticles may knockout virus particles and thus may open a novel arena of virus control in plants/humans. Our aim is to enlighten and enthuse researchers about the swiftly expanding prospects of nanotechnology in plant pathology i.e., "nanophytovirology."