Because they fix nitrogen, improve soil fertility, and provide vital nutrients, legumes are critical to world agriculture. However, environmental stressors, especially abiotic ones like drought, salt, high temperatures, and nutritional deficits, frequently reduce their output. This chapter explains stress response mechanisms and mitigation techniques while thoroughly examining the impact of abiotic stress on the production of legumes. It is essential to comprehend how abiotic stress affects legumes. Reduced yield and quality are the result of essential processes like photosynthesis and nitrogen absorption being disrupted by drought stress. Growth is disrupted by salinity stress because it modifies metabolic pathways and water balance. Hot or cold, extreme temperatures hinder development and reproduction, which affects seed set and yield. Deficits in some nutrients, particularly potassium, phosphate, and nitrogen, further limit productivity by interfering with vital physiological and biochemical functions. Intricate coping mechanisms have evolved by legumes to withstand abiotic stress. Key adaptive responses include osmotic adjustment, antioxidant defense mechanisms, hormone modulation, and gene expression regulation. These systems control hormonal signaling, scavenge reactive oxygen species, preserve cellular homeostasis, and alter the expression of genes that respond to stress. There are several ways to mitigate abiotic stress in the development of legumes. Conventional and molecular methods are used in stress tolerance breeding to create resilient cultivars. Important strategies include genetic engineering, biological methods that use beneficial microbes, and efficient crop management techniques. Other crucial tactics include adopting precision agricultural technology, controlling soil health, increasing water usage efficiency, and putting climate-smart agriculture policies into effect. Moreover, capacity-building programs and post-harvest management techniques enable farmers to successfully respond to stress-related difficulties. In conclusion, addressing abiotic stress in legume production is vital for ensuring sustainable agriculture and food security. Through interdisciplinary research and collaborative efforts, resilient legume varieties and sustainable practices can be developed to mitigate the adverse effects of abiotic stress, ensuring productivity and resilience in the face of changing environmental conditions.