Plants encounter numerous stressors factors (biotic and abiotic) that can substantially impact their growth, development, and productivity. Abiotic stresses correspond to extreme temperatures, drought, salinity, and heavy metal concentrations disrupt metabolic processes and physiological functions. Biotic stress starts pathogens and pests further compound these challenges. Plants have developed several tolerance mechanisms, such as signaling pathways, metabolic regulations, and antioxidant systems, to deal with these stresses. Nowadays, nanomaterials are being used as a hopeful approach to boost plant stress tolerance. Many nanoparticles, such as zinc and copper oxide, and silicon dioxide, have proved their ability to alleviate the negative effects of both abiotic and biotic stresses. These nanoparticles can increase plant growth, photosynthetic efficiency, and stress resistance by modulation gene expression, improving antioxidant activity, and facilitating nutrient uptake. Green-synthesized nanomaterials are produced using environmentally friendly methods such as plant extracts, awarding benefits in terms of sustainability and ecological impact. Although nanomaterials exhibit great potential in agriculture, cautious optimization and consideration of possible long-term effects are vital for their safe and effective application in crop management schemes.