Abstract: The present disclosure discloses a pipe welding ring and a pipe welding method using the same. The disclosed pipe welding ring is a plate-type welding ring which is disposed between two corresponding pipes to join the pipes, comes in contact with a welding surface of each of the pipes, and joins the pipes when melted by heating with a welding torch, and the disclosed pipe welding method includes a welding ring placing operation in which the welding ring is disposed between a first pipe and a second pipe to be joined with each other, a centering operation in which, while the center of the welding ring is aligned with the center of the first pipe and the second pipe, the first pipe and the second pipe are brought into close contact with the welding ring to support the welding ring, and a welding operation in which a welding torch is used to heat the welding ring.