The project of designing the water transmission line for the green spaces of Khosf city was implemented with the aim of providing sustainable water for the irrigation of urban green spaces in a region with a dry and water-scarce climate. This project is designed to improve the quality of green space and increase efficiency in water consumption. In the stage of preliminary studies, the available water sources, such as surface and underground water, were evaluated in order to choose an optimal path for water transfer with minimal resource loss. One of the key aspects of this project was the use of new technologies and intelligent control systems that help manage water consumption more accurately and minimize its wastage. In the design of the transmission line, resistant and high-performance pipes and equipment are used to ensure compatibility with the climatic and environmental conditions of the region in addition to reducing maintenance and operation costs. The design of this system is such that it meets the needs of green space development in the city while reducing operational costs and optimizing water consumption. Also, special attention has been paid to preserving natural resources and reducing the pressure on the water resources of the region, so that this transmission line acts as part of a comprehensive plan for sustainable management of water resources in the region.