Abstract: The logarithmic mean divisia index method was used to build up a model,i.e. eneryg eco-footprint affecting factor analyzer,for quantitative analysis of major factors affecting the energy eco-footprint in Jilin from 1994 to 2008.It was found that the energy eco-footprint increased from 0.228 hm² in 1994 to 0.524 hm² in 2008.Among the affecting factors,energy intensity and carbon emission were two major inhibitors of energy eco-footprint,contributing 84.54% and 15.46%,respectively of the total effect.Conversly,economic output,energy struture,population size and carbon sequestration were promoters,contributiing 91.39%,4.30%,3.73% and 0.57%,respectively,of the total effect.As a whole,the economic output dominated positive effect was estimated to be 1.73 times as much as the negative effect dominated by energy intensity,thus being a stimulus to increase the energy eco-footprint.In addition,with the positive and negative effects being two variables,the energy eco-footprint was distributed as a complex curved surface.It is,therefore concluded that currently the key to slowing down the energy eco-footprint in Jilin is to promote technological development so as to reduce energy intensity,and to readjust energy structure for bringing its negative effect into full play.