Agricultural food processing and packaging has seen dramatic modifications in recent years due to incorporating nanotechnology into agri-food. This chapter investigates how nanotechnology can be used to improve the effectiveness, security, and sustainability of agricultural food processing and packaging techniques. A wide range of technologies and techniques made available by nanotechnology enables precision control at the nanoscale, revolutionizing numerous facets of the agri-food sector. This chapter explores nanomaterials, like nanoparticles and nanocomposites, to enhance food quality, extend shelf life, and decrease food waste. It also covers how nanosensors and nanodevices can be used to monitor food quality parameters in real time and guarantee the safety and freshness of agricultural products. The chapter also delves into how nanotechnology influences packaging methods and materials and how food is processed. The creation of intelligent and active packaging solutions that can release antimicrobials, oxygen scavengers, and antioxidants to maintain food integrity is made possible by nanomaterials. Additionally, the effects of nanotechnology on the environment are investigated with a focus on sustainability and a smaller environmental footprint. Integrating agricultural food processing and packaging with nanotechnology holds considerable promise for tackling the modern food business’ difficulties, such as food safety, sustainability, and preservation. Insights into the present state of nanotechnology in agri-food applications, potential outcomes, and advantages for consumers and the sector as a whole are provided in this chapter.