Abstract: The mangrove spiders of Mandaitivu island had been assessed in preceding preliminary survey. This study aims to explore jumping spider fauna (Family Salticidae) in this island for the first time. Sample collection was done by sweep netting, hand picking, litter collection and beating of vegetation. Specimens were preserved in 70-80% ethanol. Spiders were identified up to species level based on morphology of epigyne and male palp structure, body shapes, colour patterns, abdominal markings.