Abstract: Since the multidimensional protection system of oil and gas pipelines in China has many shortages and weak links, this paper analyzes American and Canadian laws and standards on safety protection of oil and gas pipelines and relevant regulations on safety protections of pipelines in the petroleum enterprises in both countries. The paper points out that China's standards lag way behind in normal manual protection, physical protection, technical protection, etc, introduces examples and advanced ideas of safety protection of pipelines in US and Canada, in view of common practices in safety protection of oil and gas pipelines in China, puts forward suggestions on improving and strengthening safety protection of oil and gas pipelines, which include establishing supervision institution, making responsibility clear-cut and constructing safety protection technical system.