At present, there is no clear design specification for the design of double-row anti-slide piles. In the design process, the thrust distribution of the front and rear anti-slide piles can only be judged by experience. In order to study the condition of piles in double-row piles, the thrust share ratios basis of piles before and after piles is explored. This paper establishes a finite element model to analyze the safety factor of slopes and the landslide thrusts under different pile conditions. The research show the layout of piles has an important impact on the safety of slopes. There is a reasonable pile spacing to maximize the safety factor of the landslide; the proportion of thrust distribution of the front and rear piles will vary with different pile conditions. This is a dynamic process. When the row spacing is 30m, the thrust of the two rows of piles is the closest.