For transmission lines in complex terrain transportation of large tower material with a single piece of large weight, length characteristics, research for long tower material transportation of new freight ropeway feeding system. Feeding system mainly by the feeding guide rail, rotatable material support railcar and power device, through the power device drive rotatable material support moving railcar in the feeding guide rail movement. Wherein the active rail car moves along the straight guide rail while driving the driven rail car along the curved guide rail by means of the long tower material on the rotating pallet According to the feeding guide rail trajectory, the material is transported from the stacking point to the loading point of the ropeway or from the lowering point of the ropeway to the construction point. The basic parameters of hydraulic cylinders and motors are derived through theoretical calculations, and the selection of hydraulic cylinders and motors is made conservatively by combining the actual situation, relevant standards, and parameters of existing products. The application of the feeding system solves the problem of transporting large materials in complex terrain, reduces the intensity of manual material handling and increases the mechanisation of the feeding process.