Salinity stress is a significant impediment to the growth and production of oilseed crops worldwide, affecting plant physiology, nutrient uptake, and yield. As the demand for oilseed products increases, there is an urgent need for long-term solutions to improve crop resilience to salinity. Biostimulants, which include plant extracts, microbial inoculants, and organic compounds, have emerged as an effective and environmentally acceptable method to mitigate the adverse effects of salt stress. These chemicals enhance plant tolerance by promoting root development, improving nutrient absorption, regulating osmotic balance, and facilitating stress-related metabolic processes. This chapter investigates our current understanding of how biostimulants promote salinity tolerance in oilseed crops. It describes the methods by which biostimulants work, such as increased antioxidant activity, hormonal balance, and soil health. Furthermore, the possible integration of biostimulants with other sustainable agricultural techniques is examined, emphasizing the importance of large-scale field trials to validate laboratory results. Future research should concentrate on optimizing biostimulant compositions, understanding their molecular mechanisms, and ensuring cost-effective manufacture to stimulate wider adoption. Finally, the application of biostimulants is a potential, long-term strategy for improving the growth and productivity of oilseed crops under saline circumstances. Advancing research and development in this area can help to achieve more resilient and climate-smart agriculture.