Abstract: At present, classroom instruction is still the basic form through which teachers pass down their knowledge to undergraduates, and the quality of classroom instruction is crucial for educating students. Targeted at this issue which is critically related to the undergraduates' future, the university's reputation and national prosperity, our research is conducted by the method of questionnaires to investigate into BIT's present situation of classroom instruction quality especially its problems from three dimensions of teachers, undergraduates and teaching managers. In addition, the paper analyzes its main reasons and puts forward countermeasures to improve and advance the classroom instruction quality.