The invention discloses a positioning and grooving mechanism for a pipe pile end square plate. The mechanism comprises a bottom plate, wherein a face plate is arranged on the bottom plate, a pluralityof supporting legs are fixedly arranged below the bottom plate, square plate grooves are uniformly formed in the face plate, a punching machine is arranged on one of the square plate grooves, one ofthe square plate grooves is a discharging square plate groove, a discharging through hole formed in the bottom plate is formed below the discharging square plate groove, a material receiving mechanismis placed below the discharging through hole, a discharging mechanism is arranged on the plurality of square plate grooves, an intercepting mechanism is arranged on one side of the discharging mechanism, a transmission rod is fixedly arranged at the lower end of the middle of the face plate, the transmission rod movably penetrates through the bottom plate, a rotating disc is fixedly arranged at the end, far away from the face plate, of the transmission rod, and a plurality of static holes are uniformly formed in the rotating disc. The mechanism has the beneficial effects that rapid stamping is carried out, the grooving difficulty of manual stamping is relieved, and meanwhile, the grooving precision is increased, the situation that the construction is misaligned is reduced, and the construction efficiency is improved.