With the rapid development of science and technology,cross-cultural communication becomes intensified.More and more people are eager to gain knowledge about foreign countries because of the differences of language and cultures of different countries;translation becomes necessary in the process of information exchange.The quality in the translation of subtitle becomes more and more important which will influence people’s comprehension of English. With the rapid development of science and technology, cross-cultural communication becomes intensified. More and more people are eager to gain knowledge about foreign countries because of differences; language and cultures of different countries; translation becomes necessary in the process of information exchange. The quality in the translation of subtitle becomes more and more important which will affect people’s comprehension of English.