Wind wave is an extremely important hydrodyDamic factor in shallow lakes.It has great influences not only on shipping, bank erosion and mixing of water, but also on sediments resuspension, light strength in water, dissolved oxygen and stmcture of ecosystem.In addition, statistical analysis on the emperical wind-waves height models could help us understand more on the eutrophication and mechanism of algae bloom.Six models for the wind-wave height are set up by using least square method and non-dimensional analyzing of the observed wind-wave data (June-July, 2003) at 4 different sites, northern Lake Taihu.The deviations of the 6 wind-wave models from the observed data have been calculated.The conclusions are: 1) Models of wind-wave height (H) versus wind speed (v), wind fetch length (F) and water depth (d) are different in the littoral zone and in pelagic zone,but they could be expressed as gH/v²=a₁{a₂th[a₃[gd/v²]^a₄]th[a₅[gF/v²]^a₆/a₂th[a₃[gd/v²]^a₄]]}^a₇+a₈ where a₁-a₈ are 0.217456, 1,0.15,0.6,0.09,0.6,1.0,0.0052 in pelagic zone respectively.In the littoral zone a₇ is greater than 1, a₈ is 0,a₄ is between 0.6 and 0.72,and a₅ is among 0.00131-0.00168, The deviation of the wave height mode m pelagic zone is less than 24%, which could be greater than 50% in littoral zones.So, the model of mean wind wave height from the observation in pelagic zone is invalid to calculate the wind wave height in littoral zone, and vice versa.It implies observations must be carried out in different zones for accurate wind-wave height models, especially in pelagic zone and the zone with macropla-nts.