For the pull rod parts of aircraft aluminum alloy pipe, the pipe end closing technology was studied, and the process scheme, die design and process parameter design of rotary forging were analyzed and verified by experiments. The research shows that the rotary forging process used for pull rod is more efficient than cold extrusion and hot extrusion forming. In the process of rotary forging, the influence of axial feeding amount plays a major role in the actual operation process. In order to ensure the quality of inner and outer surfaces of pull rod and avoid the processing defect, the axial feeding amount should be reduced accordingly with the reduction of outer diameter of closing part. The axial feeding amount is related to the mold cone angle and the radial compression amount of a single group. For the pull rod with the transition zone taper of 19°, when the outside diameter of each group of initial forging is Φ35-Φ40 mm, the appropriate selection of axial feeding amount should be less than 3.0 mm; when the outside diameter is Φ30-Φ35 mm, the appropriate selection of axial feeding amount should be less than 1.8 mm; when the outside diameter is less than Φ30 mm, the appropriate selection of axial feeding amount should be less than 1.2 mm.