With the improvement of telecommunications network infrastructure, the rapid change of communication technology, the advent of the 5G era and the implementation of the "Internet plus" strategy, telecommunications network fraud has become increasingly rampant. In order to explore the differences in people's attitudes towards telecommunications network fraud, we took Qiantang District as a sample, conducted a questionnaire survey on the telecommunications network fraud in seven streets of the district and combined with the network survey, and finally found that three key aspects led to the occurrence of fraud cases. First of all, the disclosure of personal information. Almost all respondents did not pay enough attention to the protection of personal information, which led to the opportunity for fraud. Then there are many ways of fraud, which leads to people's inability to prevent endless fraud. Finally, respondents tend to attribute the reason of telecom network fraud to the victims themselves, which leads to their failure to pay attention to it and become vulnerable groups.