This book constitutes the refereed proceedings of the 7th InternationalConference on Integration of AI and OR Techniques in ConstraintProgramming for Combinatorial Optimization Problems, CPAIOR 2010, held in Bologna, Italy, in June 2010.The 18 revised full papers and 17 revised short papers presentedtogether with the extended abstracts of 3 invited talks were carefullyreviewed and selected from 72 submissions. The papers are focused onboth theoretical and practical, application-oriented issues and presentcurrent research with a special focus on the integration andhybridization of the approaches of constraint programming, artificialintelligence, and operations research technologies for solving largescale and complex real life combinatorial optimization problems.