Abstract: The development of information and communication technology accelerates competition in the service market of network access. Diversification of access terminal and access mode brings more complex user requirements, which then puts forward higher requirements for the quality of network access services Thus, based on service quality theories, this paper focuses on the service quality of network access under the background of Internet Plus By designing questionnaire and collecting data, the hypothesis of structural equation model (SEM) is put forward for the quality service of network access from three aspects: service expectation, service perception and service quality, and the model is studied in depth with correlation analysis Through hypothesis testing and empirical research, the key factors affecting the service quality of network access are obtained and based on which, special evaluation system suitable for network operators is constructed At last, suggestions are put forward in order to optimize the network access service

Key words: structural equation modeling, network access, service quality, service perception, service expectation