Abstract: Raw water transportation, urban water supply and drainage treatment, water treatment systems in various industrial and mining enterprises, and secondary water supply systems in high-rise buildings in urban areas are major energy consumers. This paper focuses on studying the characteristics and energy consumption of each process flow, and widely and scientifically selecting appropriate frequency converters to effectively save energy and reduce consumption in these traditional energy-intensive industries. Keywords: Water industry system, energy saving and consumption reduction, frequency converter design, network monitoring. For more details, please download: The Great Role of Frequency Converters in Energy Saving and Consumption Reduction in the Water Industry.pdf