A PHC communication antenna comprises a PHC composite sheet and an aluminum network, wherein the PHC composite sheet comprises a honeycomb paper core, a glass fiber mat is pasted on each of an upper surface and a lower surface of the honeycomb paper core, a PU material layer is sprayed on a surface of the glass fiber mat of each of the upper surface and the lower surface, and the aluminum network is in close contact with the PU material layer of one surface. Meanwhile, the scheme also provides a processing method of the PHC communication antenna. The PHC communication antenna has the advantages of light weight, high strength and the like, the specific gravity of the PHC communication antenna is only 1.25, the PHC communication antenna can be rapidly trimmed after being broken, the labor force during assembly and transportation is reduced, the die investment cost is low, i.e., a die is not needed to provide with an ejection system and the like, the cost is greatly reduced, while the communication effect is not affected, and the PHC communication antenna has a very prominent positive effect.