The invention provides a three-way stacking forklift with a portal capable of moving laterally and moving along with rotation. The forklift comprises a pallet fork, a pallet fork frame, a portal framesystem, a bridge frame assembly, a lateral moving sliding frame, a forklift body system and a rotating shaft, the pallet fork frame is movably installed on the portal frame system, the lateral movingsliding frame is fixedly installed at the front end of the forklift body system, the bridge frame assembly is movably installed on the lateral moving sliding frame, and the portal frame system is rotationally installed on the bridge frame assembly. The bridge frame assembly is not lifted along with the pallet fork by laterally moving the sliding frame, therefore, the actual lifting weight of thethree-way stacking forklift with the same lifting tonnage is reduced by nearly more than half compared with that of the traditional manual descending three-way stacking forklift, so the loss of the energy consumption of the assembly can be effectively reduced; the gantry system is fixed on the forklift body system and can rotate and laterally move along with the fork instead of being fixed on theforklift body system, so that the gantry system rarely shields the sight of a driver in the process of forking and stacking cargoes, and the forklift is excellent in driving view and high in safety.