Keywords: 
• 辩证逻辑；恩格斯；黑格尔

Abstract: The history and future of “dialectical logic” wrote by Wang is unsound: A precise historic fact is that Logic of Hegel is just dialectics. In order to make a distinction between the logic of Hegel and dialectical mathematical logic, we name it“general mathematical logic”; Dialectical logic of Engels is not opinions of Engels about logic, but is names logic of Hegel; Dialectical logic of Engels is a stochastic expressive way, is an improvisational, a temporary vocabulary, so is not a formal learning vocabulary. Because Engels can only use dialectics, and can not use dialectical logic, if used dialectical logic, apparent mistakes would be made, so Engels can use dialectics, cannot use dialectical logic.