Abstract: The paper points out that the article"Risk Analysis on Oil and Gas Pipelines"(See OGST, 1995)has put forward a subject which is of directive importance for carrying out pipeline risk analysis in China. Risk analysis is proved important with some actual pipeline failures due to third party damage, corrosion, mal- operation and incorrect design which resulted in unsafe operation or even loss of life and properties According to the actual conditions for long distance pipelines in China, suggestions for earring out pipeline risk analysis are given on classification of pipeline-failure causing factors, proportion and scoring of each factor, etc.