The objective of this study was to identify the species composition & density of zooplankton in super-intensive whiteleg shrimp farming ponds in Cai Nuoc district, Ca Mau province. The study was conducted in 6 shrimp ponds & 4 canals. Shrimp ponds were divided into two groups. Group A1 had a density of 150–200 shrimp m-2, & Group A2 had a density of 250–350 shrimp m-2. Zooplankton samples were collected a total of 10 times, with a cycle of 7 days per time. The results recorded 32 zooplankton species in total, of which Protozoa had the highest species number (10 species), followed by Copepoda (9 species); the other groups ranged from 5-8 species. The zooplankton composition in shrimp ponds did not show a remarkable change between groups A1 & A2 during sampling periods. However, Protozoa abundance in group A2 reached its highest value at 58–64 days, while in group A1, their density had the highest value at 43–58 days. The zooplankton density in shrimp ponds ranged from 12,593±10,507 to 525,167 ± 682,445 ind. m-3, much lower than that in the canal, varying from 159,860 ± 87,720 to 553,716 ± 649,002 ind. m-3. Rotifera & Copepoda were in high abundance at the crop beginning, while Protozoa dominated at the crop end. Water environment parameters had a significant influence on the distribution of zooplankton in shrimp ponds. The zooplankton diversity in shrimp ponds was low to medium.