Abstract: Some different opinions and new ideas are presented in this article in terms of some viewpoints presented in a previous published article in the 《 College Physics》, which talks about the two ways of statements of the correspondence principle and the integrated using of the two statements. And some understandings about the Planck＇s and Bohr＇s correspondence principle are also elaborated.

Key words: Planck＇s correspondence principle, Bohr＇s correspondence principle, limit