Chinese four-character translate them to English is one of the theory is applied to English teaching translation majors. At first, the current teaching for undergraduate translation idioms are the treasures of Chinese language and culture. How to obstacles confronting undergraduate translation majors. Metacognition of translation of Chinese four-character idioms for undergraduate situation of translation of Chinese four-character idioms in English major is analyzed, then how to adopt metacognition theory to optimize teaching methods is explored at the aim of improving...