[Objective] Studying the occurrence and distribution characteristics of condensed water of forest land in Beijing mountain areas in order and to provide a support for rational utilization of water resources.[Methods] We used four high precision weighing lysimeters at a site of China forest ecosystem research network(CFERN) during 2011-2012 to observe the distribution characteristics of woodland condensed water and meteorological factors in Beijing mountain area, and to analyze the distribution characteristics and the impact factors of condensed water in different kinds of woodlands.[Results] (1) There existed significant difference of woodland condensed water for different seasons in Beijing mountain area. The days and amounts of condensed water in the autumn and winter were far longer and higher than the corresponding values observed in spring and summer. The mean amount of monthly condensation water was about 4.5 mm in non-growing season, was 1.6 mm in growing season. (2) The order of the condensation water capacity in four forests was:grassland (38 mm) > Quercus variabilis plantations(36 mm) > Pinus tabulaeformispure plantations (30 mm) > Platycladus orientalis plantations(25 mm). The amount of condensed water of grassland was more than that of trees, and the broadleaf forest was more than the value of coniferous forest. (3) We can learn from the amount, the spatial and temporal characteristics of those different species that the temperature gradient, relative humidity and the leaf surface properties were the most important affecting factors on air water condensation.[Conclusion] The temporal distribution of condensed water of forest land is non-uniform in Beijing mountain areas, and the condensed water distribution was affected both by environmental and vegetation factors.