The invention provides a dual-broadband complementary antenna. The antenna comprises double-layer cross electromagnetic dipoles, a feed structure and a reflector; the double-layer cross electromagnetic dipoles and the feed structure are arranged in the reflector; the double-layer cross electromagnetic dipoles include a pair of double-layer electromagnetic dipoles which are arranged at two sides of the feed structure in an X-shaped symmetrical mode. The antenna has the advantages of wide impedance bandwidth, high stability, high gain, low cross polarization, high front-to-rear ratio, nearly symmetrical E and H surfaces, and the like. Therefore, the antenna is a competitive antenna which can be applied to 2G/3G/LTE/WLAN base station communication and can satisfy the requirements for safety, directionality and high data transmission rate.