Chimpanzees communities depend highly on plant resources availability and the stability of their habitats. To characterize the territories of chimpanzees living in Taï National Park, this study aimed to analyze species diversity and structural parameters of these habitats. Rectangular transect of 93 ha were established in three chimpanzee territories. On each transect, trees with dbh ≥ 10 cm were identified, measured, and counted. Two hundred sixty four (264) plant species belonging to 180 genera and 52 botanical families were recorded in the three territories. The most important families are Ebenaceae, Fabaceae, and Malvaceae. The dominant plant species are Diospyros mannii, Calpocalyx brevibracteatus, and Coula edulis. The chimpanzees feed on the leaves and fruits of these three species. The studied territories present a density (486.5 individuals/ha) and a basal area (30.88 m2/ha) similar to those of most of tropical forests. Vegetation structure reveals that those habitats are stable with high regeneration capacity. By contributing to a best knowledge of chimpanzees’ habitats, this study establishes a scientific base for their communities monitoring in the Taï National Park.