The invention discloses a precise preparing device for food processing and production. The precise preparing device comprises a base, wherein a support frame is fixedly connected to the top of the base, a first feed hopper and a second feed hopper are sequentially arranged at the top of the support frame from left to right, material leakage pipes separately communicate with the bottom of the first feed hopper and the bottom of the second feed hopper, and an electromagnetic material leakage unit is arranged in the corresponding material leakage pipe; and a first electric conveyor belt is arranged on one side of the inner wall of the support frame and is located at the bottom of the first feed hopper. The invention relates to the technical field of food preparing facility. The precise preparing device for food processing and production can realize precise measurement on the food raw materials, so that the preparing precision of the food preparing device is greatly improved; a plurality of measurement funnels do not need to be mounted on the preparing equipment to measure and compound different food raw materials, so that personnel can precisely prepare the foods conveniently, and the preparing cost of the foods is saved.