A visual laser engraving machine is disclosed, including a bottom plate, clamping assemblies and a product body. A portal frame is disposed around a surface of the bottom plate. An electrically controlled pulley is slidably connected with a horizontal slide rail at an inner side thereof. A laser device is slidably connected between longitudinal slide rails. A lower slide rail is arranged at a middle of the surface of the bottom plate. The clamping assemblies are slidably connected with the lower slide rail at an inner side of the lower slide rail and each includes a control pulley, electric push rods, a servo motor and miniature push rods. The product body is placed between the miniature push rods.