Water quality analysis involves assessing the chemical, physical, and biological characteristics of water to determine its suitability for various purposes. Parameters commonly measured include pH, dissolved oxygen (DO), turbidity, temperature, conductivity, and levels of nutrients and contaminants such as nitrates, phosphates, heavy metals, and pathogens. Various methods such as spectrophotometry, chromatography, and titration are employed to quantify these parameters accurately. Water quality analysis serves several purposes including monitoring drinking water safety, assessing environmental impacts, and ensuring compliance with regulatory standards. It is crucial for safeguarding public health, aquatic ecosystems, and industrial processes reliant on water. Monitoring can be conducted at different spatial and temporal scales, ranging from point-of-use testing to large-scale watershed assessments. Emerging technologies such as remote sensing and sensor networks offer innovative approaches to monitor water quality in real-time and at high resolution. Interdisciplinary approaches involving chemistry, biology, hydrology, and engineering are often employed to comprehensively evaluate water quality. Rapid advancements in analytical instrumentation and data processing techniques continue to improve the accuracy, efficiency, and cost-effectiveness of water quality analysis. Regular monitoring and timely intervention based on analytical results are essential for preserving and managing water resources sustainably.