Abstract: The accounting and analysis of stock assets change of forest resource is the prerequisite and basis to establish the appraisal system of the forest resources assets management performance and to curb the loss of forest resource assets. The 3S technologies were adopted to construct the accounting scheme of regional stock assets change of forest resource, and the quantity, quality and change of the stock assets of forest resource in Beijing from 2000 to 2010 accounted and analyzed accordingly. The results showed that in terms of quantity, all types of forests except deciduous forest had increased to various extents, among which the fruits forest in Pinggu and Shunyi counties, the garden forest in Haidian and Chaoyang districts, and the deciduous broad-leaved shrub forest in Miyun County, Yanqing County and Mentougou District had the most obvious increase. In terms of forest quality, the area of superior quality forest had risen considerably while that of the poor and medium-quality forest decreased slightly, among which Pinggu & Miyun counties increased most remarkably. Overall, between 2000 and 2010, the quantity of forest resource assets in Beijing had increased and the quality greatly improved greatly, in a general trend of accumulative increase.