The utility model discloses a raised pup joint disassembling and buckling device and belongs to the technical field of borehole operation in the field of petroleum extraction. The raised pup joint disassembling and buckling device is composed of a first semicircle, a second semicircle, a third semicircle and a fourth semicircle. Tooth block clamping grooves are formed in the inner wall of the first semicircle, the inner wall of the second semicircle, the inner wall of the third semicircle and the inner wall of the fourth semicircle respectively, tooth blocks are arranged in the tooth block clamping grooves, and fastening handles are arranged at the two edges of the first semicircle, the two edges of the second semicircle, the two edges of the third semicircle and the two edges of the fourth semicircle respectively and are provided with holes connected with fastening screws. The first semicircle is provided with a tooth-shaped groove, and the third semicircle is provided with a concave groove meshed with the tooth-shaped groove of the first semicircle; the second semicircle is provided with a tooth-shaped groove, and the fourth semicircle is provided with a concave groove meshed with the tooth-shaped groove of the second semicircle; the first semicircle and the second semicircle are connected through fastening screws to form the upper half portion of the raised pup joint disassembling and buckling device, and the third semicircle and the fourth semicircle are connected through fastening screws to form the lower half portion of the raised pup joint disassembling and buckling device. The raised pup joint disassembling and buckling device has the advantages that disassembling positions can be controlled according to construction requirements, and construction is facilitated.