Abstract:The fatty acids from the leaves of mangrove plant Rhizophora stylosa were extracted by Soxhlet extraction. The extracted fatty acids were esterified and analyzed by gas chromatography-mass spectrometry. Twelve fatty acids were detected and identified, amounting to 84.95% of the total fatty acids, mainly including palmitic acid (40.49%), oleic acid (17.24%) and linoleic acid (11.24%).