Abstract: Based on the data of classroom interviews and questionnaires,this paper empirically studies problems in bilingual teaching of western economics course.Results show that teachers are in shortage with their understanding biased and knowledge structure defective.The teaching method is backward and teaching management is weak.In addition,students' learning attitude is not correct.They have no motivation to learn and their English proficiency and their professional knowledge are both insufficient.Moreover,bilingual teaching is time-consuming and inefficient.Therefore,English proficiency is the key to teaching.The teaching of students' professional knowledge in non-English environment is more important and the factors affecting learning attitude are complex.