The Bass model-based forecast for the Internet users in China is studied in this paper.A general description of the Bass model is first made

and then its parameters determined on the basis of the historical data and finally the forecast and error analysis made by using this model.The resulted forecast will give an approximate time when saturation of the Internet users arrives in China

providing a basis for the future bandwidth forecast. At the end

the scope of its applications and the parameter determination methods are given and several schemes for forecast accuracy improvement presented.