The international symposium on intelligent unmanned system 2008 is jointly organized by Nanjing University of Aeronautics and Astronautics, Konkuk University, and Institute Teknologi Bandung. The joint-event is the 4th conference, extending from International Conference on Emerging System Technology (ICEST) in 2005, International Conference on Technology Fusion (ICTF) in 2006, both held in Seoul, and International Conference on Intelligent Unmanned Systems (ICIUS) in 2007 hosted in Bali. In 2008, NUAA hosts the ISIUS 2008 as a joint conference with ISNIT 2008 focusing on both theory and application primarily covering the topics on intelligent unmanned/robotic systems and biomimtic technologies. The objective of ISIUS 08 is to bring together researchers and engineers interested in the recent developments in unmanned systems. It will provide an international forum to present and discuss the state-of-the-art intelligent unmanned systems. We are pleased to invite you to submit papers and attend ISIUS 08. The ISIUS 08 will be co-located with the International Symposium on Nature-Inspired Technology 2008