Disclosed is a battery connecting unit which is placed on a lower housing and protruding from an upper housing and thus is suitable for preventing water penetration from the outside of the upper housing, and a battery pack including the same. The battery connecting unit is electrically connected to a battery laminate between a lower housing and an upper housing of a battery pack and includes a plastic member configured to come into contact with the upper housing and a metal terminal inserted into the upper housing, wherein the plastic member partially surrounds the metal terminal, and wherein the metal terminal is made of a circular pillar. In addition, the battery pack includes the battery connecting unit.