Microwave deicing is a new way of deicing, because it is characterized by fast heating speed, no pollution to the environments, and low efficiency. Adding carbon fiber to concrete can improve the conductivity and wear resistance of concrete and provide a new composite material for deicing the pavement. The microwave heat absorption efficiency, deicing effect and temperature spatial distribution of carbon fiber concrete are studied. The results show that the temperature at the center of the concrete specimen is the highest, and the farther the distance is from the center, the lower the temperature. With the increase of carbon fiber content, the heating efficiency of concrete specimens increases gradually. When the carbon fiber content is 2‰, the heat absorption efficiency of concrete specimens is the highest. And at the same time, the temperature at the center of the surface of concrete specimens increases gradually.