Abstract: It is conducted on rotifers and water quality factors in November 2016, March 2017 and July 2017. The results show that a total of 18 species of rotifers are identified, and the density of rotifershave certain characteristics of temporal and spatial changes. Synchaeta sp. is the dominant species in all three seasons. Brachionus angularis bidens can only be the dominant species in November 2016. Trichcerca cylindrica, Brachionus angularis, Anuraeopsis fissa, and Asplanchna sp. are the dominant species in November 2016 and March 2017. Trichocerca rattus is the dominant species in March and July 2017. Keratella tropica and Keratella cruciformis are dominant species only in July 2017. The dominant population structure of rotifers and the CCA analysis of environmental factors show that pH (P < 0.001) and electrical conductivity (P < 0.001) are significant explanatory environmental variability.