The invention discloses a device for correcting and reinforcing a pile foundation of a prefabricated pile for building construction. The device comprises a support plate, wherein an avoidance throughhole is formed in the center of the interior of the support plate, lifting rings are fixedly connected to both sides of the upper surface of the support plate respectively, a connecting rod is fixedlyconnected to the lower surface of the support plate, a sleeve is fixedly connected to the lower surface of the connecting rod, threaded holes are respectively formed in the upper end and the lower end of the outer surface of the sleeve, a threaded rod is in threaded connection to the inner side surfaces of the threaded holes, a round hole is formed in the threaded rod, a round block is connectedto the inner side surface of the round hole in a sliding mode, an adjusting plate is fixedly connected to the surface of the front end of the round block, and an arc-shaped groove is formed in the middle of the other side surface of the adjusting plate. The sleeve is installed on the lower end of the support plate, and additionally, the threaded rod is connected with the adjusting plate, so that prefabricated pile can be tightly pressed in four positions, thus, the convenience and stability in use can be greatly increased, and the safety and high efficiency in correction are guaranteed.