The invention discloses an impact-resistant beacon light which comprises a column body. A lamp body is fixedly installed at the top of the column body. The side wall of the column body is fixedly connected with a plurality of sets of evenly-arranged impact-resistant devices through high-strength bolts. The impact-resistant devices comprise stand columns, and screw rods are arranged at the top ends of the corresponding stand columns. Every two adjacent sets of stand columns are connected through upper steel pipes and lower steel pipes. Impact-resistant steel plates are arranged inside protective frames. The four inner corners of each protective frame are each fixedly connected with a first angle bar, and the four outer corners of each impact-resistant steel plate are each fixedly connected with a second angle bar. The outer surfaces of the impact-resistant steel plates are fixedly connected with rubber sheets through a plurality of sets of cylindrical springs. The impact-resistant beacon light is simple in structure, project input is small and maintenance is convenient. Through the designed triple-buffering mode, impact force is fully absorbed, and therefore the impact force to the beacon light can be fully reduced, the beacon light is protected, the service life of the beacon light and ships is prolonged, and high-safety beacon light protection is achieved.