Study on “water quality in rice-shrimp model, My Xuyen district, Soc Trang province, Vietnam” at 7 locations, including 5 locations on rice-shrimp model, 1 location on giant freshwater prawn nursery and 1 location outside canal. Regarding the results, it was found that the difference in pH parameter values was statistically significant, the rest of the analysis results of temperature, salinity, EC, DO parameters did not have any difference between the sampling locations and between the sampling period (P>0.05). The results of the study show that the sampling locations are all polluted from moderate to mild pollution.