Abstract: Xinjiang, Gansu and other areas along the Xinjiang coal gas pipeline distributes a large amount of.Salt heaving and corrosion of salt soil will usually lead to deformation and even leakage of oil and gas pipeline. Therefore, it is a key problem to find out the cause, structure characteristics and corrosion of the saline soil, and then provide effective control measures, which is the vital solution of the current and future development of the pipeline. This paper annlyzes the distribution, origin and microstructure of saline soil on the research route. Based on the experimental study on the corrosion of the gas pipeline in the saline soil, the paper annlyses the corrosion morphology and corrosion rate. The results show that the corrosion of X80 steel in simulated solution of saline soil is serious and accompany the local pitting corrosion. The maximum corrosion rate of the four groups samples produce at the initial stage of corrosion, and the corrosion rate increases with the rise of the temperature. With the time of corrosion prolonging, the corrosion rate of X80 steel in simulate solution will decrease gradually. This paper studys the typical saline soil along Xinjiang coal gas pipeline and analyses the corrosion effect on the pipeline, which provide a practical basis for pipeline construction and operation.