Abstract: In order to calculate carbon storage and sequestration in the urban trees of Beijing,the 1995～2000 urban greening data and remote sensing images were used.The results show total stored carbon in the urban trees of Beijing to be 5.888×10⁵5 tons,at a density of 7.70 ton C/hm² in 2002.Carbon sequestration in Beijing municipal urban trees shows a steady increase from 1990 to 2000.The net carbon storage increased in 2002 is 4600 tons.