The objective of this study was to evaluate the dynamics of natural regeneration in an urban forest fragment in Recife -PE. Ten plots of 5 m x 5 m were installed, the individuals with height (H) ≥ 1 m and the circumference at breast height (CBH) ≤ 15 cm were measured in 2010 and 2017. The floristic composition, diversity, phytosociological parameters and natural regeneration by height and total classes were evaluated. The individuals were distributed in height classes, where: C1 = H ≥ 1.0 up to 2.0 m; C2 = H> 2.1 to 3.0 m; C3 = H> 3.0 m and CAP <15 cm. The families with the highest number of individuals in both years were: Moraceae, Burseraceae, Euphorbiaceae and Fabaceae. Together, these families accounted for 74.57% of the total number of individuals in 2010 and 73.40% in 2017. The predominance of individuals in the first class was observed, followed by the second and third. The species with the highest Total Natural Regeneration (TNR) were: Artocarpus heterophyllus, Helicostylis tomentosa, Protium giganteum, Protium heptaphyllum, Brosimum guianense and Mabea occidentalis, which together corresponded to a TNR of 60.09% in 2010 and Original Research Article

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