The double-blind experiment is actually two-way, that is, the reviewer does not know the author's information, and the author does not know the reviewer's information, so it is called a double-blind experiment. Double-blind trial is more objective and fair than blind trial. For some authors with general background, if the article is well written, double-blind trial is beneficial to them, reviewers will pay full attention to the article itself, and the author will also save some unnecessary worries and worries. Therefore, the current double-blind trial is objective.