China's opening-up policy has been raised to a higher level and China has more opportunities to communicate with foreign countries under the influence of economic globalization in the 21st century.The Chinese-English public signs can be seen in more and more public places and the study on the translation of public signs has become a new research field.This paper deals with the function and translation of public signs according to the translation strategy from the perspective of text typology,trying to offer some advices on the translation of public signs to meet the demands of target readers.