In this study, we took Oenanthe javanica DC. as experimental material, and we used floating-bed cultivation technique to investigate the removal effect of TN and TP in 3 kinds of eutrophic water to explore the feasibility of using Oenanthe javanica DC. in ecological remediation. The results showed that the removal rates for NH4+-N, NO3--N and PO43--P of Oenanthe javanica DC. were 94.19%-99.35%, 89.52%-98.10% and 77.63%-79.74%, respectively. The removal rates for TN and TP were 91.67%-96.93% and 72.53%-79.74%, while the contribution of Oenanthe javanica DC. to TN and TP absorption in eutrophic water were 46.43% -63.44% and 50.54%-38.08%, respectively, indicating that the purification for TN and TP in eutrophic water by Oenanthe javanica DC. was good under the experimental conditions, and Oenanthe javanica DC. uptake played an important role. Therefore, Oenanthe javanica DC. can be used for ecological restoration of eutrophic water.

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