A simulated experiment using a new Y-shape sediment resuspension apparatus has been conducted to investigate the influence of dredging on sediment resuspension and the dynamics of nutrient loading in water column under the common wind-wave disturbance, and the contaminated sediment from Meiliang Bay, Lake Taihu, has been selected in this study. The results show that the loading of total suspended solid (TSS) in undredged and dredged water column were 7.7 and 3.8 times of that of the initial value, respectively, at the end of the wind-wave disturbance (5 h). TSS decreased to 16% of initial content in the undredged water column after initial 1 h of settling process; while TSS in the dredged water column had no significant decrease during the entire settling process, and reached its equilibrium after 3 h of settling process. TP in the dredged and undredged water column reached its maximum value after 5 h of disturbance, with the maximal increment of 78.6 and 92.2 mg/m², respectively. The results indicated that fulminant release of internal nitrogen and phosphor was caused by the wind-wave disturbance. In terms of the short-term effects of sediment dredging, sediment resuspension and PO₄^3--P release during resuspension were remarkably inhibited to a certain degree, but not for TP, TN, NO₃^--N and NO₂^--N content.