The invention relates to a crumb rubber modified asphalt electromagnetic wave heating device and a safety system. The device comprises a finished product tank, a matrix asphalt raw material tank and valves between connecting pipelines. The invention is characterized in that the safety system is mainly composed of an air compressor, a compressed air tank, a waste heat exchange safety can and a special insulating safety valve for asphalt; the air compressor is communicated with the compressed air tank; the compressed air tank is communicated with the waste heat exchange safety can through a valve; the outlet of the waste heat exchange safety can is connected with an electromagnetic wave heater and the crumb rubber modified asphalt finished product tank through the special insulating safety valve for asphalt; and the inlet of the waste heat exchange safety can is communicated with the outlet of the matrix asphalt raw material tank. The invention has the following beneficial effect: the electromagnetic wave heater used for heating asphalt has a zigzag three-dimensional cycle heating channel structure so that energy can be reduced by more than 30% compared with the prior art. The safety system which can perform overpressure protection to the pipeline and waste heat exchange to the heater is designed, thus the crumb rubber modified asphalt continuous production device can be used to realize safety production.