The ecological environmental quality of Lüsi fishing ground of Jiangsu Province was analyzed by integrated assessment methods. The results of NQI's assessment showed that Lüsi fishing ground was at eutrophication or medium nutrition level, and A value analysis showed slight or medium organic pollution all through this fishing ground. Contents of heavy metals, including Cu, Zn and Hg were above the standard limit at some sampling sites; while contents of Pb, Cd and As were within the range of natural background value. Analyzed by integrated assessment methods, the eco environment quality of Lüsi fishing ground was relatively poor most of the time, and calls for improvement.