This book constitutes the refereed proceedings of the 7th International Conference on Active Media Technology, AMT 2011, held in Lanzhou, China, in September 2011. The 30 revised full papers and 6 keynote talks were carefully reviewed and selected for inclusion in the book. They are grouped in topcial sections on data mining and pattern analysis in active media; active human-Web interaction and social media; active Web intelligence applications; active multi-agent and network systems; as well as technology intelligence.