Elodea canadensis was grown in water with constant gradients of total nitrogen (TN) and phosphorous (TP) concentrations.In present study,the growth status of E.canadensis and the capacity of removing phosphorus and nitrogen in greenhouse were evaluated by hydrotropic experiments of summer season.The results showed that E.canadensis could growth well under lower nutrient concentration (TN 1.0～5.5 mg·L^-1,TP 0.3～1.3 mg·L^-1）while its growth were partial inhibited under the enriched nutrient concentration (TN=8.0 mg·L^-1,TP=2.0 mg·L^-1 ).The nutrients removal rates of E.canadensis were enhanced with the increase of the nutrient concentrations.After 50 days treatment,the removal rate of nitrogen by E.canadensis were 55.88%,85.51%,88.18%,93.57%,95.97%,respectively and phosphorus were 47.55%,74.31%,57.75%,79.23%,74.92%,respectively.Based on our results,we can conclude that E.canadensis shown removal effects of phosphorus and nitrogen in the hot weather during summer with tolerance to higher concentration of nitrogen and phosphorus to some extent.The removal efficiency of E.canadensis is higher for nitrogen than that for phosphorus.