The invention relates to a centering-adjustment type feeding device which comprises a base, a baseplate, a V-shaped block, a support plate, a guide rod holder, a guide rod, a lifting plate and a hand wheel, wherein the baseplate is positioned at the upper part of the base, the V-shaped block driven by a cylinder is arranged at one side of the baseplate, two L-shaped plates are arranged at two sides of the V-shaped block, and a through hole is arranged in the center of the baseplate; the support plate is arranged at the lower part of the through hole, a plurality of sliding grooves are also arranged on the baseplate around the through hole, a centerline of each sliding groove passes through the center of the baseplate, the guide rod holder is positioned in the sliding grooves, the guide rod is arranged on the guide rod holder in a penetrating way, and a guide rail is connected to the end part of the guide rod; an inclined plane at the lower part of the guide rod holder passes through the sliding grooves of the baseplate and is matched with an inclined plane block on the lifting plate, a square hole is arranged at the upper part of the lifting plate and positioned on the guide rod, the guide rod is fixed on the baseplate, and the hand wheel is connected with the lifting plate through a coupler and a speed reducer. The invention has simple structure, easy operation, low production cost, extremely high automation degree, improved working efficiency and expanded using range and can be also suitable for materials with different diameter requirements.