This book constitutes the thoroughly refereed proceedings of the 22nd International Conference on Computer Processing of Oriental Languages, ICCPOL 2009, held in Hong Kong, in March 2009.

The 25 revised full papers and 15 revised poster papers presented were carefully reviewed and selected from 63 submissions. The papers address a variety of topics in natural language processing and its applications, including word segmentation, phrase and term extraction, chunking and parsing, semantic labelling, opinion mining, ontology construction, machine translation, information extraction, document summarization, and so on.