Abstract: Construction of ecological demonstrative area was developed by Chinese government to promote sustainable development, and the activity winned the supports from different parts of the society. While compiling the construction program, it should be emphasized that sustainable development of economy, optimization of entire target, harmony between nature and human, and utilization of related theories in landscape ecology on large-scale environmental problems should provide an useful technical support for demonstrative projects. Meanwhile, application of 3S and ecological mapping techniques could strengthen the scientific intention of the program and improve feasibility of the programme.