Disclosed is an automatic pressing jig apparatus including a plurality of pressing units configured to simultaneously press a plurality of bus bars provided in the battery module, the plurality of pressing units pressing an end portion of a lead assembly from an upper portion of the bus bar so that the lead assembly does not protrude through a lead slit of a bus bar among the plurality of bus bars; a support plate connected to one end portion of the plurality of pressing units to support the plurality of pressing units; and a distance adjusting unit connected to the support plate to move the support plate so that the plurality of pressing units are moved away from or closer to the battery module.