The invention relates to an electronic powder injection powder conveyor which comprises a powder tank and is characterized in that the bottom of the powder tank is an isolation ring, the isolation ring is provided with a powder feeding hole, the bottom of the isolation ring is contacted with a powder storage sheet, the powder storage sheet is connected with a spindle, a plurality of quantitative small holes are uniformly arranged in the powder storage sheet, a blanking disc is arranged below the powder storage sheet and is provided with a blanking hole, and the powder feeding hole of the isolation ring and the blanking hole of the blanking disc are arranged in a staggering way. The invention has the advantages of simple structure and accurate fixed quantity control of blanking, thereby uniformly injecting powder.