Nemipterus japonicus is one of the fish that caught in Blimbingsari Waters, Banyuwangi. This research aimed to determine the food composition of N. japonicus. Descriptive method was used in this study. Collecting data by survey and observation was taken out on Juli-August 2018. The samples were collected from fisherman at Blimbingsari. Data analysis used Index of Preponderance (IP). The results showed that the main food of the N. japonicus was shrimp (IP 62.55%), the complementary food was crab (IP 26.03%) and squid (IP 5.92%), the supplementary food was brittle star (IP 2.37%) and fish (IP 2.85%). Based on the composition of the food, N. japonicus was a type of carnivorous.