The invention discloses a quantitative control device for jelly production. The quantitative control device comprises a shell and a raw material box, and the raw material box is arranged on one side of the bottom part of the shell; a supporting rod is arranged at the top end of the interior of the shell, and two ends of the supporting rod are fixedly connected with the inner wall of the shell; anair cylinder is arranged at the top part of the supporting rod, a telescopic rod is arranged at the output end of the air cylinder, and the telescopic rod penetrates through the supporting rod, and extends to the bottom end of the supporting rod; a fixing plate is arranged at the bottom end of the telescopic rod, and the fixing plate is arranged at the bottom end of the supporting rod; and infusion sets are arranged at the top end of the fixing plate, and infusion openings are formed in the top parts of the infusion sets. According to the quantitative control device, flow valves are arranged so that the input quantity of raw materials can be conveniently controlled, and the jelly production is prevented from being influenced by the too much raw materials in raw material gas; and a single-chip microcomputer is arranged, so that signals transmitted by a flow sensor and a displacement sensor are analyzed and processed conveniently, and therefore operation of the device can be convenientlycontrolled, and the purpose of the quantitative control device is achieved.