Mangrove Rhizophora apiculata there is endophyte fungus in its tissues. Endophyte fungus in the tissue R. apiculata has the same compound as its host serves as an antibacterial. This study aims to analyze the types of endophytic fungi on the leaves of R. apiculata and analyze the potential of endophytic fungal extract R. apiculata in antibacterial tests. The method used in this study, isolating…