Nanotechnology is a developing area in the field of plant pathology. For example, nanoparticles possess better antifungal and antibacterial abilities than their bulk counterparts. In this chapter, we discussed that at every stage of seed production (seed storage, priming, germination, disease management, and postharvest), nanotechnology shows potential to improve crop productivity through improving seed quality. However, because of the complexity of seed biology, further research is needed before widespread use. In addition, more studies are required to address potential safety concerns for consumers, applicators, plants, and the environment. Therefore, careful and strategic approaches are needed to use nanotechnology in seed production.