Abstract: In recent years, with the increase in the proportion of natural gas in China's energy structure, the contradiction between supply and demand of natural gas has affected China's rapid economic sustainable development and energy security supply. By analyzing the structure of the natural gas market of North China, Shandong and other market situation, with the gas characterist-ics as well as supply and demand situation, triggered for changes in the market demand uncertainty, seasonal volatility, gas safety and other issues in North China, the authors analyze Sinopec gas of the risk of market supply from a quantitative point, the Sinopec deals with risks peaking with the strategy.