In order to solve the problems of corrugating, unfolding and ink explosion in the special vacuum metallization inner liner packaging molding, and to improve the flexibility of the special vacuum metallization inner liner in GDX2 packer, the influencing factors for the flexibility of the special vacuum metallization inner liner were analyzed. The different gradients of substance, print coating and pre-embossing parameters were analyzed for their effects on the flexibility of the vacuum metallization inner liner in packaging. The results showed that: When the substance was 56 g/m2, the corrugating and unfolding problems were reduced; When the printing plate roller process was 250 line, modified acrylic coating enhanced the abrasion performance of ink on the surface of the inner liner; When the parameter of pre-embossing pressure was 4.41 MPa, the integrity of embossing was obtained. In conclusion, there were no corrugating, unfolding and ink explosion problems when the improved special vacuum metallization inner liner was packaged, besides, the machine speed was increased from 300 box/min to 390 box/min and the efficiency was increased from 85% to 95%, and the flexibility of the vacuum metallization inner liner in GDX2 packer was effectively improved.