The contradiction between the eco-environment protection and human requirements are sharpening with the continuous social and economic development, and so that the eco-environment damage occurred frequently in China. Ecosystem structure and function degradation, and the decrease of total ecosystem services would seriously threaten the national ecological security. Thus, researches on how to identify and assess the technology and method of the baseline of eco-environment damage, cause and result relationships between human disturbance and eco-environment damage, and the extent of eco-environment damage will be helpful to safeguard national ecological security and sustainable development. University of Chinese Academy of Sciences, collaborated with 6 other institutions for the proposal of the project entitled "Research on technology of identification and assessment on eco-environmental damage" according to the Guideline for the National Key Research and Development Program on Typical Ecological Restoration and Conservation Research issued in February 2016. Finally, the proposal got approval and financial support after national level competitive evaluation process. The research background, research objectives, main contents and expected outputs were introduced in this paper. This research project may provide important policy and decision support for environmental damage liability system, environmental law enforcement and management.