This paper analyzes the application of critical thinking in the original text and translation by listing the cases. Make peo-ple realize the importance of using critical thinking in translation process and the importance of critical thinking. The word critical is derived from the Greek word"kritikos", which expresses awareness, insight, and judgment. The critical thinking, as we know it in the modern sense, comes from the reflective thinking that Dewey once proposed:bold questioning, cautious assertion. Whether it is the original or the translated text, the translator should be critical at the moment when he/she comes into contact with the article, so as to make a good translation.