The invention discloses a portable laser carving machine comprising a panel trolley and a display screen. The panel trolley is composed of a horizontal trolley plate, a laser emitter, a control unit and a travelling mechanism, wherein the laser emitter, the control unit and the travelling mechanism are fixed to the lower plate face of the horizontal trolley plate. The display screen is arranged onthe upper plate face of the horizontal trolley plate, and the travelling mechanism comprises an X-direction axle, a Y-direction axle, a first gear transmission mechanism, a second gear transmission mechanism, a first stepping motor, a second stepping motor and universal wheels, wherein the X-direction axle and the Y-direction axle are horizontally arranged, and the universal wheels are mounted atthe two ends of the X-direction axle and the two ends of the Y-direction axle correspondingly. The X-direction axle and the Y-direction axle are rotatably connected with the horizontal trolley platethrough bearing bodies, the X-direction axle is in transmission connection with the first synchronous motor through the first gear transmission mechanism, and the Y-direction axle is in transmission connection with the second synchronous motor through the second gear transmission mechanism. The portable laser carving machine has the advantages that an enormous frame structure of an existing carving machine is omitted, the portable laser carving machine is small and easy to carry, and the adaptability of the portable laser carving machine is improved. Meanwhile, the portable laser carving machine can conduct caving through an existing mature carving upper computer.