The utility model discloses a noodle ration shutdown mechanism, include cutter, dead knife, go up linkage and clutch, still include ratchet, ratchet takes turns to through the chain that connecting rod off -centre hinged at last linkage, goes up the one -level power first via and passes through upward linkage rotation of I drive on the chain, goes up the linkage and drives the ratchet rotation, and ratchet passes through the rotation of transmission shaft drive cam, and chain II drives clutches and rotates, clutch area movable cutter intermittent motion, and the noodless that the cutter coordinates the dead knife will pass through above the dead knife cut off. The utility model discloses utilize ratchet drive mechanism to replace loaded down with trivial details sprocket feed, retrench transmission structure, reduced part quantity, reduced material cost and manufacturing cost.