There are six intersecting inclined inner spherical grooves on the inner surface of VL-type spherical cage cylindrical shell, which make it difficult to demold in the traditional die forging process. Therefore, a forging die with a retractable tapered wedge mandrel and the multi-directional die forging press with vertical hydraulic cylinder and three horizontal hydraulic cylinders were designed, and the precision forming of multi-directional die forging and the automatic demolding were realized. At the same time, the numerical simulation analysis on the material flow behavior and the change of field in the process were analyzed by Deform to finish the optimization design of billet shape, and the multi-directional die forging experiments were carried out to verify the simulation results. The results indicate that the petal-shaped billet with axial waves can effectively control the radial and axial flashes of the forgings, and the extra material in the inner spnerical groove is extruded to the trough of wavy billet during forging, which improves the forming precision of forgings, decreases the forging load, and effectively reduce the subsequent finishing time of forgings. Thus, the process flow is relatively simple and easy to accomplish, which provides a new way for forging production of parts with complicated internal structure and difficult demolding.