Case teaching is an important part of the professional master's training

and a key link to cultivate the engineering practice ability and innovation ability of graduate students. This paper expounded the significance of case teaching (including standardization

inspiration

interactivity

content relevance and application)

and summarized and combed

then put forward the importance of case teaching and the construction method of teaching case for polymer professional master's course. In comparison with the previous professional master's degree course teaching mode

proposed the case teaching mode and some suggestions on the guarantee of case teaching to prepare for the next putted forward case library construction. It would promote the case teaching of professional master's course for our university in to a higher level of development.