After the academic journals have a list of early warning journals, the publications published by the authors have a blacklist that must be avoided. However, periodical early warning is time-sensitive, and it is easy to publish papers before periodical early warning, so it is not an early warning periodical paper. Periodical early warning is a list of early warning periodicals formulated by relevant departments or units according to certain rules. All papers published in early warning journals.

Graduation in this unit, evaluation of titles, evaluation of Excellence, etc. Not recognized. This is also the reason why the author has to avoid early warning periodicals when choosing periodicals. However, the list of early warning journals is dynamic, and now is equal to tomorrow, and now is not equal to tomorrow. Journals are not warned when papers are published, but only after they are published.

Periodical warning is generally updated once a year, but who is the periodical to which the warning is sent cannot be confirmed before the list comes out. What the author should do is to avoid the latest early warning periodicals when choosing periodicals. In other words, the unit has time to define the early warning journal papers, and does not include the papers published before the journal warning in the scope of early warning journal papers.

There are generally two kinds of periodical early warning, one is the international periodical early warning list of Chinese Academy of Sciences, and the other is the unit academic periodical early warning list. The author's unit, if it has its own list of early warning journals.

When selecting journals, we should take into account the early warning list of international journals of Chinese Academy of Sciences and the early warning list of academic journals of our own unit. If you don't have your own list of early warning journals, just pay attention to the early warning list of international journals of Chinese Academy of Sciences when choosing journals. In addition, the early warning list of international journals in 2023 has been released, and the author should update the query catalogue in time.