Abstract: Analyzes our country's realistic energy structure and points out that if the present situation is not changed, serious air pollution and low thermal efficiency of energy utilization shall be created. Puts forward our country's energy developing strategy that is raise energy utilization rate and optimize energy structure. A most urgent task in changing energy structure is to develop nature gas. For this purpose, following 8 aspects shall be made ready in advance: (1) define pipeline's economic bound; (2) pipeline's operation form and capital constitution study; (3) pay attention to international advanced level at present age; (4) design and construction problems; (5) preparation for faults crossing of pipeline; (6) study on peak method; (7) pipe material and steel pipe selection; (8) study on major engineering that crossing river and mountain.