Western national ecological security barrier construction has a strategic significance to national ecological security in China. There are Loess plateau，Tibet Plateau，and Inner Mongolian Plateau in western China. In this report，The state of ecological construction and its development ideas of Inland river of Qilian Mountains，Yellow River’s upper reaches in Gannan Plateau，Changjiang River’s upper reaches in Southern Qinling-Bashan Mountains，the Loess Plateau in Southeast，the Middle Along the Yellow river in Gansu Province，and improtant regions including Qinhai province，Shanxi province，Inner Mongolia in western China，are evaluated and summarized. According to the above results of assessment，the fellow countermeasures and suggestions should be taken. The ideas of fostering an ecological civilization that respects，conforms to and protects nature should be firmly established. Key ecological projects and major ecological projects should be implemented. Environmentally friendly industries should be actively developed. The efforts to conserve energy，reduce emissions，and to protect the environment should be appreciated. Building of an ecological civilization system and mechanism should be accelerated. Efforts to build an ecological security barrier in the western region of China should be made.