Abstract: Based on the ecological footprint theory,this paper constructed an evaluation model for regional ecological security assessment,and quantitatively evaluated the dynamic changes of ecological foot and ecological security in Henan province during the year from 1995 to 2008.The results show that the per capita ecological footprint in Henan province has been increased from 1.258 8 hm2 in 1995 to 2.613 2 hm2 in 2008.The main reason is that the fossil-energy footprint increased 3-fold during the same ..