The invention discloses automatic blank feeding equipment and a control method thereof. The automatic blank feeding equipment comprises a conveying chain, a conveying roller way, a first detector and a controller, wherein the conveying chain is used for conveying blanks transversely; the first side edge of the conveying roller way is connected with the tail end of the conveying chain, and the conveying roller way is used for receiving the blanks and conveying the blanks longitudinally; the first detector is arranged on the second side edge of the conveying roller way and corresponds to the conveying chain in position, and the first detector is used for detecting the distances between the head portion and the tail portion of each blank on the conveying roller way and the second side edge of the conveying roller way correspondingly; the controller is connected with the first detector and controls the operation state of the conveying chain according to the distances, detected by the first detector, between the head portion and the tail portion of each blank on the conveying roller way and the second side edge of the conveying roller way correspondingly. By detecting the distances between the head portion and the tail portion of each blank and the side edge of the conveying roller way, the inclination state of the blanks on the conveying roller way is obtained through calculation, whether the blanks can move smoothly or not in subsequent operation of the equipment can be known, and the equipment is prevented from being damaged.