In order to address the challenges of global change and energy transition, and to promote innovative research and practice in the field of sustainable development and energy resources, the 2026 3rd International Conference on Sustainable Development and Energy Resources (SDER 2026) will be grandly held on July 17-19, 2026 in Shenzhen, China. The conference aims to provide a high-level communication platform for global scholars, business representatives and policy makers to discuss the cutting-edge technologies and paths to sustainable development in the field of energy resources.