Inter-sourced pollution coming from lake sediment movement has aggravated deterioration of the ecological environment. Sediment transport rate under the lake wave movement provides reference for investigating causes of lake water quality change and ecological environment governance. Sediment transporting experiments from Lakes Taihu, Longgan and Chaohu under wave movements were performed in laboratory wave tanks. The results of silt-clay variations under multi-group wave conditions in the lake were described in detail and then analyzed for the three lakes. The formula of the sediment transporting rate was obtained by analyzing experimental data. These would give reference for causes of water quality change and ecological environment governance.