The invention discloses an elbow cutting blank feeding device. The elbow cutting blank feeding device comprises a work bench, wherein a blank pushing mechanism and a blank locating mechanism are arranged at the top of the work bench; the blank pushing mechanism comprises a linkage bracket, and a guide rod and a screw rod which are connected with the work bench; the linkage bracket is sequentially connected with the guide rod and the screw rod in an interpenetrating manner; a blank clamping mechanism is connected at a free end of the linkage bracket; a servo motor is connected at one end of the screw rod; and the blank locating mechanism comprises a locating guide sliding plate arranged on one side of the work bench and an elastic side pressing plate component arranged on the other side of the work bench. According to the elbow cutting blank feeding device, quick clamping, accurate locating and efficient cutting of multiple-connected elbow cutting can be achieved, the operation is convenient and quick, and the reliability is high.