Abstract: Proposed is an apparatus for inserting an electrode assembly, the apparatus including a clamping unit configured to clamp or unclamp the electrode assembly, and an articulated robot including one or more links rotatably connected to each other by joint shafts and configured to mount the clamping unit on a front link. Here, the electrode assembly is inclinedly introduced and accommodated in a pouch through an open space between an upper pouch and a lower pouch. In addition, proposed is a method of inserting an electrode assembly using the above-described apparatus.