Agarwood producing plant (Aquilaria microcarpa Baill.) is one of the Non Timber Forest Products (NTFP) that high value. However, its population had strongly decreased due to overexploitation. The objective of this study was to know the population of A. microcarpa. This study was conducted from October-December 2010. This research used sampling technique by mean of making quadrate transect were laid by systematic. Result of this study were as follows; there were poles and sapling stage at Hutan Kota Gunung Kembang (HKGK) and tree, poles and sapling stage at HKGK. Poles stage of A. microcarpa at HKGK was important value index (IVI) 16,18% and sapling stage IVI 20,58%. However, tree stages of A. microcarpa at Hutan Karet was 102,75%; pole stage 20,05% and sapling stage 8,85% respectively. A positive correlation was found between DBH and height. Pole density was 35 trees/ha and sapling stage was 320 trees/ha at HKGK. Tree was 67 trees/ha; pole 17 trees/ha, and sapling 67 trees/ha at Hutan Karet. The population density of A. microcarpa at HKGK more higher than Hutan Karet.