Abstract: In order to quantify the forest carbon storage in Heilongjiang Province, predict the carbon sequestration potential and provide suggestions for future forest development, the forest carbon storage of Heilongjiang Province was estimated between 1994 and 2013 by the method of stock volume-biomass correlation equation, and the relationship between forest carbon density and age of stand was established based on the age group data of 18 main kinds of forest types in Heilongjiang Province cited from the National Forest Inventory.Based on Heilongjiang Province's Provincial Forest Protection and Utilization Plan(2010-2020), this paper predicts Heilongjiang Province's forest carbon storage, and analyses the carbon sequestration potential of Heilongjiang.The results show that the relationship fits well between carbon density and age, and the relationship effectively reflects the growth of various forest types in Heilongjiang Province.The Heilongjiang forest carbon storage was 693.2, 676.3, 741.1 and 805.2 Tg based on the four National Forest Inventories(1994-2013).And it will reach 844.0 Tg in the next Ninth National Forest Inventory(2014-2018).In the forecast period, the forest carbon storage will reach 868.1 Tg in 2020, increasing year by year.If the existing forest in Heilongjiang Province becomes the mature forest, the provincial carbon storage will reach 1.40×10³ Tg, which is a high potential carbon sink.In addition, the present study also provided countermeasures and suggestions for increasing the forest carbon storage of Heilongjiang Province:(1) Strengthen the provincial protection of coniferous and broad-leaved mixed forests in cold temperate and temperate zones; (2) Emphasize forest types which have carbon sequestration advantages in reforestation, such as pine, poplar, etc.; (3) Improve the protection of near-mature and mature forests, and control the quantity of mature forest.