Abstract: Pinus Kwangtungensis is widely distributed in the subtropics and tropicsto the south of Nanling mountain, it cau grow well both in limestone and in sandstone and shale mountain, mainly oddly occuring in the top and ridge of higher elevations (above 700-1000m.).There is distribution of Pinus kwangtungensis forest of small area in Huanjiang County。This Paper de-als with its phytocoenological features, including community physiognomy, structure, floristic composition, succession and main association etc. It may be seen from mentioned above research information, its formation and development have close relation to limestone mixed evergreen and deciduous broadleaf forest, which is the climax type suited with local environment。Pinus kwangtungensis is an useful timber tree, it may be used as regeneration species of higher elevations in subtropics of Guangxi.