Based on the cross-cultural communicative method and pragmatical method, the author tries to investigate the types of pragmatic failure and the potential causes by test and interview, aiming to find out the problems and give some suggestions to arouse students’ pragmatic awareness, to avoid unnecessary pragmatic failures and to improve their pragmatic competence. Through the survey, the author finds that pragmatic failure usually appears in pragmalinguistic failure and sociopragmatic aspects; the teachers have a good knowledge of pragmatic failure and the situation of pragmatic failure among students; negative language transfer, the difference of culture and values between China and western countries are the core causes of pragmatic failure. There are 100 students and four teachers who participate in the investigation. They are the subjects of the research. The students are sophomore and juniors in English major who are randomly chosen from the School of Foreign Languages in a Guangxi Normal University. In addition, the teachers are those who teach the students of English major in a Guangxi Normal University.