Climate change-induced abiotic stresses, such as drought, salinity, and extreme temperatures, pose significant threats to global agriculture, reducing crop yields and jeopardizing food security. Nanotechnology has emerged as a promising tool to address these challenges by enhancing crop resilience and productivity under adverse environmental conditions. This study focuses on the synthesis, characterization, and application of advanced nanomaterials designed to mitigate abiotic stress in crops. Using eco-friendly green synthesis methods, we have developed nanomaterials including nanocarriers for stress-responsive molecules, nanoscale nutrient delivery systems, and protective nanocoatings. These materials were characterized using advanced techniques, including TEM, XRD, and FTIR, to ensure their structural and functional properties are optimized for agricultural applications. The nanomaterials were tested under simulated stress conditions, demonstrating significant improvements in seed germination, root development, and overall plant growth. For instance, nano-enabled platforms enhanced water retention, nutrient uptake, and antioxidant activity in plants, enabling them to withstand drought and salinity stress more effectively. Field trials conducted in drought-prone and saline-affected regions further validated these findings, showing increased crop yields and reduced water requirements. This research highlights the potential of nanotechnology to revolutionize agriculture by providing sustainable, scalable, and cost-effective solutions to improve crop resilience. By addressing the challenges posed by climate change, these nanomaterials offer a pathway to enhance food security and support sustainable farming practices. The integration of nanotechnology into agriculture not only improves crop performance under stress but also contributes to the development of climate-resilient agricultural systems for the future.