This product is a light-contact double combination labyrinth railway bearing sealing device, including sealing cover, sealing ring, outer sealing ring and inner sealing ring, through the combination of sealing ring and sealing cover, forming the first line of defense to prevent external dust and impurities from entering the bearing, so as to prevent external dust and impurities from entering the bearing; Through the cooperation of the inner sealing ring and the outer sealing ring, a labyrinth structure is formed between the two to prevent grease leakage. Its simple structure can resist impurities in the working environment into the bearing, and prevent grease leakage, thereby improving the service life of the bearing.