Demographic analysis includes the sets of methods that allow us to measure the dimensions and dynamics of populations. In natural forests, without any intervention, the diameter distribution resulted from competition and the number of trees per hectare may vary according to many factors. The natural regeneration is considered the backbone for the continuity and sustainability of the forest. This study assessed the current structure of Albizia amara and Terminalia brownii and their demography beside other tree species in Elsareef reserved forest and examined the potential effects and relationship between the natural regeneration and the mother trees on the capability of the regeneration for continuity and recruitment