Abstract: This article describes the optimized operation way of gas transmission pipeline network and the structure of Shaanxi-Beijing Gas Transmission Pipeline network. In the light of high consumption of gas in Tangshan City and Qinhuangdao City, which makes the operation of Shaanxi-Beijing Gas Transmission Pipeline network more complicated, an investigation on it is made. The authors consider that the method on city non-pipelining LNG storage and transportation should be utilized as a supply of gas to balance the gas market for the district.