The aim of the researches were to know mangrove condition and abundance of economic ichtifauna in National Sembilang Park. Sample collecting was conducted in 4 stastions such as Solok Buntu Water, Sembilang Estuary, Alanggantang Island Water and Terusan Dalam river. Collecting of mangrove vegetation sample was conducted on December S^-51*1, whereas fish sample collecting was conducted on Novemb…