Abstract: This paper firstly analyzes main problems of current performance assessing systems in China: ignoring the assessment of teachers' ethics, students' training level, personal development and differences and the allocation of indicators for graduate students. Faced with this reality, we propose the principle of evaluating the performance of teachers. For example, the default of teachers' morality cannot be tolerated. And we should pay attention to the quality of postgraduate training, personal development and classification evaluation. Finally, we formulate the index system.

Key words: Graduate tutor, Performance assessment, Representative evaluation, Assessing by classification