2026 International Symposium on Biological Neural Networks and Intelligent Optimization will be held in Zhuha, China, from January 16-18. BNNIO 2026 aims to bring together leading scholars, researchers, and industry experts from the fields of bio-neuroscience, artificial intelligence, computer science, and intelligent optimization to collectively explore the latest research advancements, cutting-edge theories, and application breakthroughs in bio-neural networks and intelligent optimization technologies. The conference will cover fundamental scientific issues such as the dynamical mechanisms of biological neural networks, neural plasticity, and biological intelligence models, as well as theoretical innovations and practical applications in intelligent optimisation algorithms, intelligent decision-making, and brain-inspired computing. BNNIO 2026 will promote interdisciplinary exchange, drive the deep integration of brain-inspired intelligence and intelligent optimisation technologies, and support the development of future artificial intelligence and industrial upgrading. To ensure the academic quality of this conference and attract more original high-quality academic papers, we are now soliciting submissions. We warmly invite educators, researchers, and students engaged in research related to biological neural networks and intelligent optimization to actively submit their papers.