Abstract: Ecological niche is an important term in the research of ecological system and ecological competition.It could widen the horizon of college moral education by interdisciplinary application.On the base of the niche theory,the ecological niche of college moral education,which is the result of the ecological competition of college moral education,could be defined as the position and function of a college moral education unit in the college moral education ecological system.The competitive ability of college moral education influences the breadth of its niche directly.The ecological niche of college moral education has several dimensions.Every college moral education unit has different niches in the dimensions of space,time,resource,scale,etc.

Key words: college moral education, ecological niche