Cn periodicals are the general name of regular periodicals in China. As long as it is a regular periodical, it has a cn number and is issued by the General Administration of Press and Publication after strict qualification examination. Whether it is a provincial, national or core periodical, as long as it is a regular periodical, it has a cn number, so cn periodical is a general term and does not represent a specific level.

CN stands for a publication registered in China and publicly distributed in China.

The so-called cn publications refer to all publications registered in China and publicly distributed in China. The serial numbers of these publications are all marked with the letter cn, and people are used to calling them CN publications.

At present, Cn periodicals are the only standard to identify the authenticity of periodicals in China, that is, all periodicals officially approved by the General Administration of Press and Publication must have CN serial numbers. .