This paper describes the two models by using vertical elastic foundation beam method to calculate the low pile cap retaining wall base. In one model, piles undertake all load above underside of the cap; in the other model, subsoil and piles work together to undertake all load above underside of the cap. Meanwhile, this paper describes design requirements and discriminant conditions of the two computational models. This paper provides reference to design and calculation of low pile cap retaining wall structure.