Based on the introduction of basic conditions in west China, the major ecological environmental problems existing in the west China regions are analyzed and the countermeasures and suggestions of the conservation and construction of ecological environment in developing west China are put forward. The development of west China is a wonderful system project as well as an arduous and long term task, which might require the efforts of several generations. In the development of west China, the conservation of ecological environment should be given the first priority. We must improve our knowledge and take advantage of high technologies to energetically carry out Chinese eco agriculture, water saving agricultural practices, afforestation and soil erosion control projects.