Pangpang Bay Essential Ecosystem Area, Banyuwangi is a wetland traveled by the East Asia Australia Flyway (EAAF) bird migration route. This research aims to study the diversity, and abundance of waterbird species, and the relationship between the presence of waterbird species and environmental factors in each wetland habitat type. This research was conducted in October 2023-fanuary 2024 using the ‘Concentration Count’ method in each wetland habitat type. Based on observations, 34 species of waterbirds were found in all wetland habitats with a total of7468 individuals. The mudflats of Muncar Beach had the highest species diversity with a total of 32 waterbird species, one of which, the East Gajahan species, was the first recorded finding in eastern Java. 22 migratory waterbird species, 8 resident waterbird species, and 4 resident migratory waterbird species were found Based on IUCN status, 5 species were found to be Near Threatened (NT), and 3 were found to be Endangered (EN). The index value of waterbird species diversity in each wetland habitat type was categorized as moderate (H’=l.895 – 2.594), except for the mangrove habitat which was classified as low (H’=0.719). The PC4 results showed that the presence of waterbirds was influenced by habitat conditions and environmental parameters (temperature, air humidity, light intensity, salinity).