The invention discloses a seafood can sealed flow production device which comprises a device main body. The device main body is internally provided with a conveying chamber which is through front and back, the conveying chamber is internally provided with a conveyor belt which can slide back and forth, a can box is placed at the upper end of the conveyor belt, the upper side of the can box is slidably provided with a cover, the can box is internally provided with a lower storage chamber with an upward opening, and the cover is internally provided with an upper storage chamber with a downward opening. The can is sealed through flow production, manual labor is saved, and the work efficiency is improved; and sealing is carried out in a vacuum water sealing manner, air and bacteria outside the can are prevented from entering the food storage chambers, the can is capable of being directly opened in a water drainage and air releasing manner, and the seafood can sealed flow production device is safe and convenient to use.