The invention belongs to the technical field of internet advertisement, and provides an internet advertisement real-time bidding multi-advertiser multi-factor flow
distribution method. The method comprises the steps that an advertisement bidding unit ad group is divided into an offline multi-factor mixed grading function module, an offline maximum cost
estimation function module, a grade cumulative distribution
estimation function module and an online flow
distribution function module. In the offline multi-factor mixed grading function module, offline multi-factor mixed grading is carried out on advertisements; in the offline maximum cost
estimation function module, offline maximum cost estimation is carried out on the advertisements; in the grade cumulative distribution estimation function module, grade cumulative distribution estimation is carried out on PV flow participating in biding; in the online flow
distribution function module, online flow distribution is carried out on the advertisements. Numerical values obtained through the steps are compared, and a conclusion of whether quotation is carried out or not is obtained. The problems that some advertisements have fewer and fewer putting chances, the budget cannot be spent, it is unfair for advertisers, and DSP overall situation putting earnings are affected are solved.