The utility model relates to an oil processing equipment field, concretely relates to grease barrel fills nitrogen sealing equipment, including carrying the platform, carry bench side to install electric putter, the electric putter below is equipped with a pair of card that is used for blocking the bottle lid, and the card is connected in bottle lid pipeline both sides, and the position that bottle lid pipeline is close to electric putter is equipped with the nitrogen gas pipeline who takes the spout, is equipped with the solenoid valve on the nitrogen gas pipeline, and the spout is equipped with a laser sensor on one side, and the card outside carries the bench still to be equipped with the 2nd laser sensor on being connected to the crossbeam. The utility model discloses grease barrel is carrying the bench to advance, when the grease barrel oral area during facing to nitrogen gas conveying pipeline's spout the solenoid valve open in nitrogen gas injects grease barrel, electric putter pushed down and presses the grease barrel oral area with the bottle lid when grease barrel continued to advance bottle lid below between the card, need not artifical the counterpoint when having realized the gland like this, intelligent degree height.