The utility model discloses a continuous boxed food modified atmosphere fresh-keeping packaging machine. The utility model comprises an upper mold structure, a lower mold structure, a ventilation structure and a control device. The upper mold structure comprises an upper mold plate, a heat sealing mold, a cutting tool connected with the heat sealing mold and an upper cylinder, and the heat sealing mold and the upper mold The air cylinder is connected, and the upper molding plate is elastically connected with the shaft of the upper cylinder, characterized in that the lower molding structure includes a driving device and a plurality of mold boxes, and the plurality of mold boxes are chain-connected, and the bottom of each mold box is provided There are an inflatable buckle and an air discharging buckle; the ventilation structure includes an inflatable head matched with the inflatable buckle of the mold box, an exhaust head matched with the exhaust buckle, and a small cylinder respectively connected with the inflatable head and the exhaust head. And a gas storage tank connected to the inflation head pipe; the control device is electrically connected with the upper cylinder, the small cylinder and the drive device respectively. The program moves the inflating head and the exhaust head through the upper mold, so that the boxed food packaging machine is continuous and the working efficiency is improved.