An embodiment of the utility model discloses a double-frequency dual-polarizing antenna, which comprises a reflecting plate, a high-frequency oscillator array and a low-frequency oscillator array, wherein the high-frequency oscillator array is composed of two or more than two high-frequency oscillators, the low-frequency oscillator array is composed of two or more than two low-frequency oscillators, and the high-frequency oscillator array and the low-frequency oscillator array are arranged on the same side of the reflecting plate. The high-frequency oscillators and the low-frequency oscillators are axially arranged along the axial direction of the reflecting plate, two high-frequency oscillators are arranged between each two adjacent low-frequency oscillators, and one high-frequency oscillator is nested in each low-frequency oscillator. By the aid of double-frequency dual-polarizing antenna, spacing of the high-frequency oscillators is ensured, and reflection of the high-frequency oscillators to lower-frequency signals is reduced and then all electrical properties of the low-frequency oscillators are ensured, so that interaction among different frequency ranges is effectively decreased and electrical properties of all frequency ranges are ensured. Besides, the double-frequency dual-polarizing antenna is simple in structure, convenient in mounting, high in consistency and easy in production, and has the advantages of small horizontal plane beam width fluctuation, capability of owning ultra wide band prosperities and the like.