Hidden type vehicle tail license plate lamp

The utility model relates to the technical field of license plate lamps, and discloses a hidden license plate lamp for a vehicle tail, which solves the problems that the brightness of the existing license plate is not uniform and the warning effect cannot be well achieved, and comprises a rear bumper, a mounting groove is formed in the rear bumper, a license plate is mounted in the mounting groove, a U-shaped groove is formed in the rear bumper, and the U-shaped groove is formed in the rear bumper. A moving mechanism is mounted in the U-shaped groove, a driving mechanism is mounted on the moving mechanism, and the moving mechanism comprises two inner blocks symmetrically fixed in the U-shaped groove; according to the license plate, through cooperation of the first screw rod, the second screw rod, the threaded sleeve and the driving rod, the two movable rods can conveniently drive the two side blocks to move, the two LED lamps are located on the two sides of the license plate body, then the license plate body