The invention discloses an LED projection lamp convenient to move and transfer and with an illumination angle convenient to adjust. The LED projection lamp comprises a box. A motor is mounted in the box. A rotary rod is connected to the upper end of the motor. A first bevel gear is arranged on the rotary rod. Threaded rods are oppositely arranged on the inner side of the box. A second bevel gear is arranged at one end of each threaded rod and is engaged with the first bevel gear. The threaded rods are fixed to the bottom end of the box through bearing seats. Nuts are arranged on the threaded rods. Connecting rods are hinged to the outer sides of the nuts. One end of each connecting rod penetrates through a sliding groove to be hinged to a supporting plate. A lamp holder is rotatably connected to the other end of the supporting plate. A first supporting rod is hinged to the bottom end of the lamp holder. A second supporting rod is hinged to the other end of the first supporting rod. Light-emitting elements are arranged at the upper end of the lamp holder. Brake wheels are mounted at the bottom end of the box. The LED projection lamp is convenient to move and transfer, and the illumination angle and direction can also be adjusted very conveniently; and the structure is simple, and using requirements of people are met.