As people in the world are getting more and more aware that economic develop-ment must match up with natural resource consumption and environment protection,it is nec-essary for scientists to rethink systematically research and development of wood-based mate-rials with life cycle assessment(LCA)method and to make wood-based materials more envi-ronmentally friendly. Waste wood-based materials include waste solid wood,waste wood-based composites and waste paper. This paper discussed briefly the background,methods,re-search needs and benefits regarding to the utilization of waste solid wood and waste wood-based composites.