It was the long term human activities that built the modern landscape patterns in Eastern Liaoning Mountainous Regions. In the historical period,because the human activities were limited,the original matrix was not changed,which made the original forest landscape remain.Round about liberation and during the Great Cultural Revolution,the frequent human activities changed the original forest landscape greatly and brought a series of environmental and ecological problems.Since 1990s,with the rising of ecological agriculture,a new kind of semi-natural forest landscape pattern has been in embryo,which corresponds with the sustainable economic development.It presents the expansion of the forest matrix,the sustainable increase in the steady artificial forest patches and the decrease in the unsteady farming patches.But because of the increase in human habitat patches and artificial corridors,the stability of the landscape patterns will still be threatened.