The present study was carried out from intertidal mangrove ecosystem around Mumbai coast. The mangrove areas in and around Mumbai are both degrading and in good conditions as well. The substratum are mainly sandy, muddy and rocky patches. Altogether 9 true mangrove species were recorded from the selected sites. Maximum diversity was recorded at Dharamtar followed by Bhayandar and Lokhandwala. Avicennia marina and A. officinalis were the dominant species at all the stations followed by Rhizophora mucronata. A groups of benthos were identified from all the three stations, which include bivalves, gastropods, polychaetes, crabs, barnacles. Dominant group of benthos such as barnacle and polychaetes in all three stations. Presence sewage wastes and municipal solid wastes will increase due to threats for mangrove forests as well as aquatic flora and fauna. The developmental processes like coastal roads, ports, jetties and freeing the vulnerable areas for ownerships etc. will certainly have adverse impact on the coastal forests and in turn on fisheries production.