Purse seine is a common fishing gears used by fisherman in Muara Angke Fishing Port just after bouke ami fishing gears. The purpose of this research was to analize the selectivity level of purse seine fishing gears based on fishing catch composition. The data were collected in muara angke fishing port from 10 Mei to 1 June 2016. The data of fishing catch were collected at fish landing from 3 units of purse seine fishing boats and by accompanied one fishing boat which was operated in the Java Sea. The composisition of fishing catches and fork length of first maturity fish were analyzed in this study. The results showed that there were 14 species of fishes were cacth by purse seine in Java Sea with the total catch volume was 9.092 kg of total weight. The main catch composition was 21.35%, while the by-catch was reached 78.7%. A total 50.1% of main catch have been matured. It was concluded that purse seine fishing gears was classffied as low selectivity fishing gear.