The utility model relates to a be used for overpass pitch layer snow melt thawing apparatus of mating formation, the device include power supply system and snow -melting system, snow -melting system includes the pitch layer, be pitch layer top -down SMA 10 modified asphalt mastic mixture, SMA 13 modified asphalt mastic mixture, asphaltic sands wherein are provided with the heating cable in the asphaltic sands, the device that adopts this kind of structure utilizes heating cable to give off the heat to heat bituminous paving, reaches the effect of snow melt ice, is a construction convenience, safe and reliable, energy -concerving and environment -protective snow melt thawing apparatus. But wide application in the easy snow regional overpass pitch structural layer of mating formation that freezes.