We are thrilled to announce that the 2025 4th International Symposium on Intelligent Unmanned Systems and Artificial Intelligence (SIUSAI 2025) will take place in Hohhot, China, from August 15-17, 2025. This event will serve as a pivotal platform for shaping the future of Unmanned Systems and Artificial Intelligence. Attendees can expect to gain invaluable insights into cutting-edge technologies, emerging trends, and exciting research directions in this dynamic field. We are now inviting paper submissions related to intelligent unmanned systems and artificial intelligence, and we look forward to your contributions. (more information: www.siusai.org)