Micronutrients are essential for plant growth and development and play a crucial role in maintaining soil physicochemical properties. However, their excessive or inadequate application can have adverse effects on environmental sustainability. This paper provides a comprehensive analysis of the impact of micronutrients on soil physicochemical properties and environmental sustainability. The review includes an analysis of the literature on the effect of micronutrients on soil pH, electrical conductivity, cation exchange capacity, organic matter content, and nutrient availability. The paper also discusses the environmental implications of micronutrient application, including soil and water pollution, as well as the potential for micronutrient toxicity in plants and animals. The study concludes with recommendations for sustainable micronutrient management practices that balance the needs of plant growth and environmental protection.