Undergone two transformations in editing and translating, the global news is never the faithful representation of reality. The paper, adopting the instrument of the critical discourse analysis, makes a comparative study on the news headlines by Chinese and U.S. media on the 18th National Congress of CPC. It not only explores how linguistic signs are used by U.S. news transeditors to express different opinions, attitudes and ideologies, but also reveals the shortcomings in the English news by China media - though a more objective represen...