The invention relates to an automatic weighing and feeding device for an electronic kiln, belonging to the technical field of the supporting facilities of electronic kilns. The automatic weighing and feeding device comprises a material conveying rack, an automatic material conveying mechanism, a metering rack, a weighing mechanism and a weighing disk moving mechanism, wherein the automatic material conveying mechanism is arranged at the top of the material conveying rack, the metering rack is arranged at one end of the material conveying rack, a first guide rail is fixedly arranged at one side of the top of the metering rack in the length direction, a second guide rail is fixedly arranged at the other side of the top of the metering rack in the length direction, the weighing mechanism is matched with the first guide rail and the second guide rail in a sliding manner and also corresponds to the automatic material conveying mechanism, and the weighing disk moving mechanism is arranged on the metering rack and is in transmission connection with the weighing mechanism. The automatic weighing and feeding device for the electronic kiln has the advantages that the requirements of uninterrupted weighing and metering are met by only one device, and then, the material conveying mechanism is guaranteed to uninterruptedly take materials, so that the design and the investment can be saved, the difficulty in the management and the maintenance of the device can be reduced, the efficiency can be increased, and the occupied space of a production site can be saved.