The interactive game mode focusing on academic performance and teaching evaluation between teachers and students will lead to two negative assessment results.The first result is that students evaluate teachers' teaching efforts and quality falsely,making teaching evaluation a severe skewed distribution.The second result is students' achievements are generally unrealistically high because of teachers' loose treatment,which also shows a skewed distribution.The mutually reinforcement of two negative assessment results eventually leads to the big discount of the validity and reliability of teaching quality assessment.To change the model of students' evaluating teachers into the new method of students evaluating teaching quality relying on the evaluation of students themselves about study will be beneficial for the improvement of the quality of teaching.