The theory of sustainable development emphasizes the need to balance environmental, economic, and social objectives to ensure long-term well-being for both current and future generations. In the field of architecture, this concept has evolved into the discipline of architectural ecology, which integrates ecological principles into the design, construction, and maintenance of buildings and urban environments. This paper explores how sustainable development theory is applied in architectural ecology, focusing on energy efficiency, the use of renewable resources, reduction of environmental impact, and the creation of healthy living environments. The study also examines innovative design strategies and technologies that contribute to ecological resilience and sustainability in modern architecture.