VIP is a famous database of periodical papers, which contains a large number of Chinese periodical papers. Periodical papers collected by VIP are strictly examined and screened, so generally speaking, periodical papers collected by VIP are formal and reliable. However, it should be noted that the periodical papers included in VIP do not necessarily mean that their contents are correct or excellent. Readers should choose appropriate documents to read and quote according to their own research needs and actual situation. At the same time, we should also pay attention to avoid blindly citing periodical papers included in VIP, and carefully review and evaluate the cited documents to ensure that they meet academic norms and requirements.