Keywords: 
• PollutionEcology  caseteachingmethod  graduatedstudents

Abstract: Case Teaching method is being widely used in the many courses for under-graduated and/or grad-uated students because of its instructiveness ,practicalness ,flexibility and fun features .In this paper ,the teaching time of case teaching ,the methods of case library collection ,the ways of case teaching methods and incentive systems have been discussed to stimulate the participating enthusiasm of students during the course of Pollution Ecology for graduated students .The use of case teaching in the courses for graduate students could enrich the teaching content , stimulate their interesting in studying , and promote the students to participate the teaching activities before ,in and after the schools ,therefore improving the abil-ity of innovation ,problem analyzing and solving skills .In these ways ,the better teaching effects were a-chieved .