Abstract: Forest is the main body of terrestrial ecosystem, forestry ecological construction plays irreplaceable role in national sustainable development strategy implementing. Forest city is not the simple combination of forest and city,but the city possesses forest ecological environment.As a harmony complex ecosystem, Forest city meets the sustainable city construction development, the important thoughts of ＂Three Represents＂ and the requirement of putting people first and scientific outlook on development. Forest city is modern city with beautiful environment,its characters includes dominated with Arbor species, combined with tree, shrubs,grass and flower, reasonable collocation of forest species and tree species,point-line-surface-cycle connected with each other, biotic community diversification relatively stable.