In order to reveal the pollution characteristics of nutrients and heavy metals in the surface sediments of Shijiu Lake, surface sediments were collected in February 2018, and the contents and spatial distribution of nutrients and heavy metals in Shijiu Lake were analyzed. The results showed that the average values of organic matter, total phosphorus and total nitrogen were 30. 25 mg/kg、 585 mg/kg and 776 mg/kg, respectively, and total phosphorus were in no ecological risk level, organic and total nitrogen were in low ecological level; The average values of Cr, Ni, Cu, Zn, As, Cd, Hg and Pb were 94. 92 mg/kg, 41. 25 mg/kg, 38. 42 mg/kg, 124. 33 mg/kg, 16. 48 mg/kg, 0. 17 mg/kg, 0. 05 mg/kg and 35. 92 mg/kg, respectively, all of them exceeded the background values of heavy metals in soils in Jiangsu Province. Hg and Cd pollution is relatively heavy, and the whole lake is of medium hazard grade. In the spatial distribution, the nutrient quality of sampling sites 8 and 9 in the eastern region was higher, and the heavy metal pollution was more serious.