Pantai Baru area of Deli Serdang is located on the East Coast of Sumatera that has been as Important Bird Area (IBA). The wetland type of this area are consisted of ponds, mangroves, and mudflat that occupied by shorebirds both for feeding and resting area. This study aimed to analyze the diversity and potential food of shorebirds Pantai Baru area. Concentration count method and Corer methord were used to collect the shorebirds and macrozoobenthos data. The study found 19 species of shorebirds and 21 species of macrozoobenthos. The diversity index of shorebirds ranged from 1.89 to 2.50 on medium category with the evenness index ranged from 0.84 to 0.97 with high category, while diversity index of macrozoobenthos was 1.09 on medium category with evenness index 0.36 on small category.