The invention provides a laser marking machine which comprises a computer control system, a laser generator capable of emitting laser on a first light path, a vibrating lens and a work bench arranged under the vibrating lens. The first light path is parallel to the work bench. The laser marking machine further comprises a laser beam expanding device arranged on the first light path, a first reflector device capable of converting laser emitted by the laser beam expanding device into a second light path perpendicular to the first light path and parallel to the work bench, a second reflector device capable of reflecting laser on the second light path to a third light path parallel to the work bench, a light pipe arranged on the third light path and used for guiding laser, a third reflector device and an f-theta lens arranged on one side, facing the work bench, of the vibrating lens. The third reflector device is arranged at one end of the light pipe and can convert beam on the third light path into beam on a fourth light path parallel to the work bench. The vibrating lens can receive the beam on the fourth light path, and laser beam enters the vibrating lens to be irradiated on the work bench by the f-theta lens.