Internet of Things (IoT) brings promising opportunities and challenges. It attracts great attentions and has important economic and social values. IoT will play a key role in the next generation of information, network, and communication developing. Future IoT may bring us an era of harmony of man with nature which means harmony fusion of Physical-space, Cyber-space, and Social-space. We will witness emancipation not only from onerous labor works brought by machine-human interface, but also from the spatial-temporal constrains in Physical-space, and will achieve substantial benefits from IT development. The 2013 IEEE International Conference on Internet of Things (iThings 2013) will provide a high-profile, leading-edge forum for researchers, engineers, and practitioners to present state-of-art advances and innovations in theoretical foundations, systems, infrastructure, tools, testbeds, and applications for the Internet of Things, as well as to identify emerging research topics and define the future. iThings 2013 is the new edition of a successful series, previously held as iThings 2012 (Besançon, France), iThings 2011 (Dalian, China), IOTS 2010 (Hangzhou, China), MINES 2009 (Hangzhou, China), and MINES 2008 (Chengdu, China).