Embodiments of the present invention disclose a dual-polarized antenna radiating element. The dual-polarized antenna radiating element includes four radiators and a connecting part, where the four radiators are arranged in a cross shape, with each two of them oppositely disposed, the four radiators form a radiating plane, one end of each of the radiators is connected to the connecting part, and the other end extends in a direction away from the connecting part. Each of the radiators includes a first radiating arm and a second radiating arm, where the first radiating arm and the second radiating arm are asymmetric. In the embodiments of the present invention, a new resonant frequency band is added by using asymmetric radiating arms, thereby broadening the width of a resonant frequency band, so that the antenna radiating element can adapt to a broader resonant frequency band.