Facing increasing urban challenges, especially in developing cities, EcoTech Urbanism introduces a new model that merges ecological practices with advanced technologies to create sustainable, resilient, and livable cities. EcoTech Urbanism is an all-encompassing strategy incorporating state-of-the-art technologies to solve problems often occurring in developing cities. This multidisciplinary approach tackles urbanization’s complexities, such as resource management, environmental degradation, and social equity, using innovations like smart grids, IoT, renewable energy, intelligent transportation systems, and public participation platforms. EcoTech Urbanism offers a comprehensive strategy for reducing environmental impact while improving quality of life by emphasizing smart infrastructure, sustainable water and waste management, data-driven governance, and inclusive urban planning. This chapter investigates the critical role of technology in addressing urban development issues, the implementation of smart systems, and the significance of public participation in promoting sustainability. Finally, EcoTech Urbanism promotes ecological harmony within cities and stimulates economic growth and social equity, making it an essential model for future city development.