［Purposes］ The stress and deformation characteristics of load-bearing and anti-slide double-row piles on slope top were studied. The impact of pile spacing, coupling beam height, pile embedded depth and other factors on deformation characteristic of pile was analyzed. In particular, the influence of the vertical load and the length of the free section on the horizontal displacement and the maximum bending moment was reflected. ［Methods］ Based on the finite element software ABAQUS, controlling the single variable, the deformation characteristics of double-row piles under different factors were simulated. ［Findings］ Due to the sliding surface, the horizontal displacement and bending moment of the pile change suddenly, when the pile spacing is 1d-2d（d is pile diameter）. Therefore, the influences of sliding surface should be considered, when the pile spacing is designed. The value of the couple beams height had tiny impact on the function of piles, which can be selected according to the standard. The embedded depth had significant effect on the deformation and the moment of the piles in the location of the sliding surface. However， the effect will decrease as the increase of the depth. The embedded depth should exceed the sliding surface properly in project design. When the length of piles free section increases, the P-Δ effect change to more remarkable. The maximum bending moment of the front and back piles almost equal under different lengths of free section. ［Conclusions］ The double-row piles located on the top surface of the slope must bear the axial and transverse composite loads, the bearing mechanism and stress form are more complicated than those of slope protection piles. The research results can be used for the design of related engineering.