The natural carbon storage function and alternative emission effects of forest products are of practical significance to climate change mitigation. Taking harvested wood products(HWP) as an object,and based on their natural and economic attributes,this study sets three dimensions and five indexes to assess the carbon storage efficiency of HWP,and based on the integrated analytical system of the Global Forest Products Model(GFPM)and the stock-change approach of the Intergovernmental Panel on Climate Change,this tudy simulates,accounts and analyzes storage changes and structural evolution of China's HWP carbon pool from 2010 to 2030. We found differences in carbon storage efficiency among all kinds of forest products. Solid wood products have a relatively good carbon storage efficiency,among which sawnwood has the best carbon storage efficiency in particular,while paper products have the worst carbon storage efficiency. Solid wood products,especially sawnwood,plywood,and fiberboard,are the main contributors to increasing the level of storage of China's HWP carbon pool,and their contribution will be more considerable and likely to determine the long-term development of China's HWP carbon pool. China's HWP carbon pool will keep increasing between 2010 and 2030,meanwhile its overall carbon stock efficiency,product structure and structure of carbon stock efficiency will improve, even though the annual increment decreases as a whole. The overall carbon stock efficiency of China's HWP carbon pool will be significantly promoted. In particular,the proportion of sawnwood and wood-based panels,which have a relatively better carbon stock efficiency,are predicted to slightly increase,while the proportion of paper and paperboard,which are of relatively worse carbon stock efficiency,will decrease.