Internet of Things technology has promoted the development of water-saving irrigation and irrigation management, in which it is crucial to create an energy-efficient, high-quality, feature-rich and easy-to-maintain intelligent irrigation system. This paper focuses on the application of IoT technology, and designs and implements a system that integrates sensor technology, cloud service platform, wireless communication module and IoT cutting-edge equipment. Through the deep integration of various technical resources, the system realizes the data analysis, visual monitoring and fine regulation of irrigation operations, improves the utilization efficiency of water resources, reduces the cost of irrigation management, and guarantees the high efficiency and precision of irrigation operations. It provides theoretical support for the wide application of intelligent irrigation technology and has an important impact on promoting the sustainable development of agriculture, improving the quality of the ecological environment and enhancing the awareness of social water conservation.