Effects on the hot forging mould cracking of typical shell were studied through analyzing the process of the typical shell, switching between product drawing and forging drawing and the description of design principles and manufacturing process. In order to avoid closed-die forging and deformstion dead areas of the shell, the problem of center location between the blank center and the die center should be solved and the effect of the flash design on the forming force should be cared during the forging design. It provides a significant reference for hot forging mould process design, forging design and die structure design of titanium alloys shell.