The plot experiments were conducted to study the effects of land utilization of municipal sludge and lake sediment on nutrients and heavy metals(Cd,Pb) in soil-plant system.The results showed that content of nutrients could be increased in the soil by application of municipal sludge and lake sediment,heavy metals of Cd,Pb accumulated in the surface soil layer without migrating downward into deep soil layer.With the increasing of application of municipal sludge and lake sediment on soil,the yield of wheat seed and the content of nutrients,absorbed by wheat,both increased,but mass of nutrients accumulated in the soil,the accumulation of heavy metals were in an order: root>stem>seed,Cd>Pb,the content of heavy metals of Cd,Pb in wheat seed were not exceeded the National Control Hygienic Standard for Foods,municipal sludge and lake sediment could be applied 5 years and 6 years on soil continuously,even the amount of application was 100 t/hm~2 and 200 t/hm~2.