According to Baidu Encyclopedia, China Higher Education Student Information Network is sponsored by the Center for Student Service and Quality Development of the Ministry of Education (formerly the National Center for College Students' Information Consultation and Employment Guidance). Xue Xin. Based on the large-scale data warehouse established by the center, com integrates the information of college enrollment, academic certification and graduate employment. The information platform of "Sunshine College Entrance Examination", education information management platform, postgraduate enrollment information network in China, and enrollment information network of mainland universities in Hong Kong, Macao and Taiwan have been opened, and more than 20 information systems have been opened, including education inquiry system, online verification system, online registration and admission inspection system for postgraduate students, postgraduate enrollment adjustment service system, and online office system for education certification. It can be seen that the questionnaire survey needs to learn the authentication of information network to ensure the authority and authenticity of information sources.