The 2026 International Conference on Geotechnical Engineering and Underground Space (GEUS 2026) will be held in Zhengzhou, China, from December 4–6, 2026. GEUS 2026 aims to provide an international forum for researchers, scientists, engineers, and industry professionals to present and exchange the latest advances in geotechnical engineering, geomechanics, computational geotechnics, underground systems, engineering geology, and intelligent monitoring technologies. The conference promotes interdisciplinary research integrating theoretical studies, numerical modeling, instrumentation, digital technologies, and engineering applications, fostering scientific innovation and international collaboration in geotechnical engineering and underground space.