The invention discloses a broadband superconducting frequency divider. The broadband superconducting frequency divider is made of a high-temperature superconducting material; the surface resistance ofthe high-temperature superconducting material is almost zero, and the loss of the superconducting material is much smaller than that of a conventional metal conductor; the broadband superconducting frequency divider made of the superconducting material has extremely low insertion loss and excellent out-of-band rejection performance; the broadband superconducting frequency divider of the present invention is composed of a plurality of superconducting band-pass filters; a superconducting high-pass structure and a superconducting low-pass structure are cascaded together so as to form each superconducting band-pass filter; the plurality of superconducting band-pass filters are matched with each other so as to form the broadband superconducting frequency divider; and the transmission line of the broadband superconducting frequency divider is of a meandering structure, a rectangular spiral structure or the like, so that the broadband superconducting frequency divider is compact and small insize.