The bulk of agricultural production is destroyed annually due to environmental stress. The use of plant growth regulators such as brassinosteroids is one of the practical ways to reduce these damages. A range of environmental stresses, such as increasing or decreasing temperature, drought, salinity and ultraviolet radiation, and microbes, are harmful to plants. Salinity in soil or water is one of the main stresses in arid and semi-arid areas, which can severely limit plant growth. Brassinososteroids are a group of plant hormones that have significant biological effects on plant growth, including increasing resistance to environmental stresses. Brassinosteroids, as one of the steroid hormones, play a significant role in controlling the physiological processes of plants, especially response to biological and non-biological stresses. Brassinosteroid is a group of steroid compounds that are naturally synthesized and include a wide range of biological activities. Brassine steroids control several important agricultural features such as flowering time and grain yield and stress tolerance. Significant increase in yield may be due to both plant metabolism and plant protection against environmental stresses.