CRISPR-based genome editing has emerged as a revolutionary tool for improving staple crops, offering precise genetic modifications that enhance resilience, yield, and nutritional value. This review highlights recent advancements in CRISPR/Cas technology, including prime and base editing, and the development of novel CRISPR-associated proteins, which have significantly improved the specificity, efficiency, and scope of genome editing in agriculture. These innovations enable targeted genetic modifications that enhance tolerance to abiotic and biotic stresses, while also improving crop yield, quality, and nutritional content through biofortification. Despite challenges such as off-target effects, the need for more efficient delivery methods, and ethical and regulatory concerns, the review underscores the importance of CRISPR/Cas in addressing global food security and sustainability challenges. It calls for continued research and integration of CRISPR with other emerging technologies like nanotechnology, synthetic biology, and machine learning to fully realize its potential in developing resilient, productive, and sustainable agricultural systems. CRISPR/Cas technology has been successfully applied to enhance abiotic stress tolerance in crops such as rice, wheat, and maize by targeting genes involved in water use efficiency, osmotic balance, heat shock factors, salt tolerance, and cold resistance. It has also been used to improve biotic stress resistance by targeting genes involved in viral, bacterial, fungal, and pest resistance. Additionally, CRISPR/Cas technology has been employed to improve crop yield and quality by enhancing photosynthetic efficiency, nutrient uptake, and resistance to lodging, while also improving taste, texture, shelf life, and nutritional content through biofortification. The review also discusses the challenges and future prospects of CRISPR/Cas technology, including off-target effects, delivery methods, and ethical and regulatory issues. Despite these challenges, CRISPR/Cas technology holds great promise for addressing global food security and sustainability challenges.CRISPR-based genome editing has emerged as a revolutionary tool for improving staple crops, offering precise genetic modifications that enhance resilience, yield, and nutritional value. This review highlights recent advancements in CRISPR/Cas technology, including prime and base editing, and the development of novel CRISPR-associated proteins, which have significantly improved the specificity, efficiency, and scope of genome editing in agriculture. These innovations enable targeted genetic modifications that enhance tolerance to abiotic and biotic stresses, while also improving crop yield, quality, and nutritional content through biofortification. Despite challenges such as off-target effects, the need for more efficient delivery methods, and ethical and regulatory concerns, the review underscores the importance of CRISPR/Cas in addressing global food security and sustainability challenges. It calls for continued research and integration of CRISPR with other emerging technologies like nanotechnology, synthetic biology, and machine learning to fully realize its potential in developing resilient, productive, and sustainable agricultural systems. CRISPR/Cas technology has been successfully applied to enhance abiotic stress tolerance in crops such as rice, wheat, and maize by targeting genes involved in water use efficiency, osmotic balance, heat shock factors, salt tolerance, and cold resistance. It has also been used to improve biotic stress resistance by targeting genes involved in viral, bacterial, fungal, and pest resistance. Additionally, CRISPR/Cas technology has been employed to improve crop yield and quality by enhancing photosynthetic efficiency, nutrient uptake, and resistance to lodging, while also improving taste, texture, shelf life, and nutritional content through biofortification. The review also discusses the challenges and future prospects of CRISPR/Cas technology, including off-target effects, delivery methods, and ethical and regulatory issues. Despite these challenges, CRISPR/Cas technology holds great promise for addressing global food security and sustainability challenges.