The invention discloses a digital local code spraying and gold stamping all-in-one machine. The digital local code spraying and gold stamping all-in-one machine comprises a code spraying part and a gold stamping part. The code spraying part comprises a rack. A code spraying head and a conveying belt for a printed product are arranged on the rack. The conveying belt is mounted on conveying rollers in a wound mode. The conveying rollers are in transmission connection with a motor. The digital local code spraying and gold stamping all-in-one machine is characterized in that a clamping component used for limiting deviation of the conveying belt in the axial direction the conveying rollers when the motor rotates forwards or reversely is further arranged on the rack, and the clamping component is arranged on a wallboard of the rack through a sliding block assembly; a sliding block of the sliding block assembly can reciprocate on the wallboard of the rack, and the clamping component is connected with the conveying belt when the motor rotate forward or reversely; and when the motor rotates in one direction, the clamping component is separated from the conveying belt, movement of the conveying belt is inevitably limited by the clamping component, it is ensured that the conveying belt moves back and forth without deviating, and the quality of the printed product is ensured.