Abstract: Pile jacking will produce excess pore water pressure in saturated clay and affects technical and economic rationality of design and construction in civil and hydraulic engineering in time and space. In order to obtain theoretical solution of distribution of excess pore pressure due to pile jacking in saturated clay, the distribution rules of pore water pressure are analyzed, and the Henkel formula is used to calculate the excess pore water pressure caused by 3D soil squeeze based on calculated results of the additional total stress. Finally, based on the engineering practice, the distribution rules of displacement and stress and excess hydrostatic pore pressure are calculated for test and verification of theoretical solutions by means of the consolidation series solution. It may provide methods for design and construction of pile foundation engineering.