Purpose: E-Government, as a new bond linking the government and the public, has become the focus of innovation in government services. The paper focuses on e-Government service quality issues from the perspective of users. Design/methodology/approach: From the aspects of online service quality perception offline service quality perception, based on IS Success model and SERQUAL e-Government Services Quality model has been set up with information quality, system and service quality as key factors. Then, the survey method was applied to collect data and to test the model. Findings: It was found that users' perception of offline service quality has a significant on improving their perception of online service quality, and online service quality has a significant effect on public satisfaction of e-Government services; information system security and stability, interactive services and "one-stop" services all have a effect on public satisfaction of e-Government services. However, offline service perception has certain positive effect on public satisfaction of e-Government services but dramatically. Research limitations/implications: Mobile e-Government as an important direction of the development of e-Government, in the future, we will study more about mobile e-Government services channels. Originality/value: This study further develops the theory of information system service quality, and also provides a theoretical reference for government departments. On the one hand, based on the characteristics of e-government system, information quality, system quality and service quality in the previous system service model are further discussed; on the other hand, both online and offline services are taken into consideration in the information system service model, thus establishing the e-government services quality model and making an indepth study of the integration effect of online and offline services. Its conclusions can be references for the application of traditional information system service model in the field of e-government.