The invention discloses a dual-polarization wide-stop-band filtering antenna and communication equipment, and the antenna comprises a dielectric substrate, a metal floor, a metal radiation paster, a metal feed arm, a metal square ring branch knot, a metal transverse branch knot, and a metal probe, the dielectric substrate is of a rectangular cavity structure, and the metal floor is disposed on thelower surface of the dielectric substrate. The metal radiation paster is arranged in the middle of the upper surface of the dielectric substrate, the metal transverse branch knot and the metal squarering branch knot are located in the rectangular cavity, located on the same layer and connected, the metal feed arm is located between the metal square ring branch knot and the metal radiation paster, and one end of the metal probe and a round hole formed in the metal floor form a coaxial feed structure. And the other end of the metal probe passes through the metal transverse branch knot and is connected with one end of the metal feed arm to form a dual-polarization differential feed structure, and the metal probe is connected with the metal transverse branch knot. The antenna is simple in structure, the size of the radio frequency front end can be greatly reduced, and extra insertion loss is avoided.