Pouch for secondary battery and secondary battery comprising the same

A pouch for a secondary battery having improved stability to an external force and an internal pressure and a secondary battery including the pouch are disclosed. In an aspect, a pouch for a secondary battery implemented based on some embodiments of the disclosed technology includes a pouch cup including a battery cell accommodating portion, a tab receiving portion formed at one end portion of the pouch cup to be in communication with one end of the battery cell accommodating portion, a supporting portion adjacent to the tab receiving portion at the one end portion of the pouch cup to be separated from the battery cell accommodating portion and the tab receiving portion, the supporting portion comprising a plurality of columns in the supporting portion, and a reinforcing film attached on an outer wall of the supporting portion, the reinforcing film including a material different from that of the outer wall of the supporting portion.