Abstract: Catch composition of Estuarine Set Bag Net (ESBN) in coastal waters of Pontian, Johor, Peninsular Malaysia was investigated based on the catch data during June to November 2007. The total catches comprised of three major groups were Acetes shrimps (89%), juvenile fishes (9%) and other shrimps (2%). Among the Acetes shrimps, three species were recorded from the study area viz., Acetes indicus (74%), Acetes serrulatus (24%) and Acetes japonicus (2%). The nine juvenile fishes species were identified as Setipinna brevicep, Trichiurus lepturus (ribbon fish), Lutjanus malabaricus, Epinephelus diacanthus, Cynoglossus bilineatus, Secutor ruconius, Lactarius lactarius, Atelopus japonicus and Ilisha kampeni. Other shrimps were constituted of two families as Penaeidae (70%) and Thalassocaridae (30%). This study revealed that there is no bad impact of ESBN on juvenile fishes.