The measurement and allocation of carbon in harvested wood products (HWP) of international trade is an important forestry issue in the United Nations Framework on Climate Change Convention. In this paper,the carbon storage and carbon emissions of HWP in trade for China was accounted from 19612011,then the contribution to carbon removal was analyzed according to the IPCC guidelines. Research showed that: The carbon flow accounted by different method suggested by IPCC had different effect on carbon reduction for annex I trading nation. The carbon stock in the form of wood product imports grew constantly,which had increased carbon removal by stock-change approach. While estimated by atmospheric-flow approach,large imports of primary wood materials increased carbon emissions,so that trade of HWP had made China become acarbon source.