Abstract: In the engineering hoisting construction process,the use of crane machinery will produce different effects on nearby crane dock and the operation process of the machinery,which will produce certain change of stress and displacement of pile foundation.This paper studied the influence on pile foundation in mechanical lifting process of the dock and the movement through the analysis of an actual project.With the comprehensive analysis of displacement and stress,influence of hoisting machinery foundation analysis was studied using the finite element method,which is helpful to assess the feasibility of the construction machinery operation.