The present invention relates to a secondary battery pouch-type case, which accommodates an electrode assembly and is thermally fused and sealed, and has an outer sheath layer, a metal barrier layer and an internal adhesive layer that are sequentially stacked, wherein an adhesive layer for enhancing an inter-adhesive force is interposed between the outer sheath layer and the metal barrier layer and between the metal barrier layer and the internal adhesive layer, the pouch-type case accommodates the electrode assembly therein by thermally fusing and sealing the outer circumferential surface ofan upper case and the outer circumferential side of a lower case, and a gas-discharging member allowing the inside and the outside of a battery case to communicate is interposed at a sealing part at which the upper case and the lower case are thermally fused.