The invention discloses a method for showing aeronautic ground light by using laser LD (laser diode) navigational lamps. With the adoption of the method, the incoherent light characteristic and the three-dimensional radiation advantage of the laser LD navigational lamps are adopted to three-dimensionally change the color and three-dimensionally show the light, the design and construction of the center navigational light are saved while the method is applied to aeronautic ground light; and the method has obvious energy-saving effect, is capable of improving the light showing transmission effect, and has strong penetration effect in greasy days. According to the method, lamps can be produced in industrialization, general utilization, serialization and standardization; and the aeronautic ground light can be shown.