Abstract: In this paper,factors were filtered through the Delphi method.But in the analysis of the relationship between the various factors,PageRank voting ideas look the interaction of the factors which affect the quality of web service as a link with each webpage,and this method uses this interaction as votes and calculates the affected value by internal relationship of each factors.The sequence of factors which affects the quality of web service by importance will be got eventually,and this method offers an example and reference for evaluation of quality of the web service.

Key words: PageRank,Influencing factors,Importance ranking