The corridor area in this national park is important to protect biodiversity among two ecosystems of Mt. Halimun and Salak. The corridor forest area was degraded by human activity and led to recover by natural succession. The ecological information is needed to improve management of the corridor. We set 22 plots of 10 m x10 m in the corridor area to record the vegetation composition. Height (H), DBH of woody species (H> 130 cm) were measured in the plots. Coverage of woody species with H ≤ 130 cm and herbs were recorded in 9 sub plots of 2 m x 2 m for each plot. Some areas were plantation and production forest, thus plantation trees (Swietenia macrophylla, Agathis dammara, Calliandra calothyrsus and <i/>coffea sp.) were still dominant. Some areas distant from village had fragments of natural forest of Fagaceae, Schima and Altingia. Due to time abandonment and land use history, each community developed into different stage of succession. Early stage of succession dominated by weed species then Eupatorium odoratum, Clibadium surinamense and Melastoma malabathricum established as pioneer species. Some forest species mixed with pioneer tree rose as young secondary forest component.