Aiming at the problems of difficult billet positioning and severe unbalanced load forming during the forming process of special-shaped shell die forgings and difficult demoulding after forming， for 2A14 aluminum alloy special-shaped shell segments used in aerospace， the simulation and production trial process of die forging and extrusion for non-axisymmetric horseshoe-shaped shell were studied， and the changes of load， temperature field and equivalent strain in different parts during the forming process were analyzed. Then， the forming load and possible defects were predicted，and the billet positioning， forgings knockout combination device and upper die structure of forming were optimized.The results show that the simulated forming effect is basically consistent with the actual production.Based on the good die design and the numerical simulation optimization results， the die forgings are successfully trial produced on a hydraulic press. The filling of various parts of the product is good， and the performance of the sampling ring meets the design requirements， achieving the state of product use and delivery.