This study aims to evaluate the chemical profile and fungicidal activity of nanoemulsion of essential oil obtained from Ba-har (Syrian pepper).The essential oils and stable nanoemulsions were subjected to evaluation of fungicidal action against Aspergillus niger, Colletotrichum gloeosporioides and Penicilium chrysogenum strains. The results obtained for total phenolic content were quantified as 348.3 mg EAT g-1 and 346.21 mg EQ g-1 for flavonoids. Ba-har essential oil was more efficient in inhibiting a niger as it had the lowest MIC (200 ?g mL-1), followed by P. chrysogenum (250 ?g mL-1) and then by C. gloeosporioides (300 ?g mL-1). The identification of secondary metabolites present in Ba-har was quite considerable as they were responsible for the biological properties, thus inspiring the continuity of studies related to its biological activities. As for the total phenolic content and flavonoids present in the essential oil, they indicated the important antioxidant potential. The fungicidal potential of Ba-har oil showed strong inhibition and mortality, however the prod.