This article is based on the full analysis of outside major students' knowledge structure and the knowledge hierarchy of polymer chemistry; it put forward a new method of efficiently completing outside major teaching task of polymer chemistry via using the experiment platform of polymer chemistry and the combining of education in classroom and practice in site. The teaching practice shows this method not only can help to deal with the contradiction of the little class hour and the most content course in outside major polymer chemistry course

but also make students tasted the important action of theory knowledge of polymer chemistry in daily life by practical teaching. Furthermore

the teaching method also reaches the incorporation of studying and using

theory and practice

class studying and outclass studying. The study achievement provides a new idea for efficiently completing outside major teaching task of polymer chemistry.