A novel fractal plane ultra-wideband antenna belongs to the wireless communication technical field. The novel fractal plane ultra-wideband antenna is composed of a medium plate (3), a radiation unit (2) and a feed unit (4) printed on one face of the medium plate (3) and directly communicated with each other, and a grounding unit (6) printed on the other face of the medium plate. The radiation unit (2) is a metal patch formed by performing iterative fractal operations twice or more times and being a communicating body. A slit (1) is etched on the radiation unit. The grounding unit (6) is a trapezoidal metal patch. A rectangular groove (5) is etched on the central position of the grounding unit upper bottom edge. The novel fractal plane ultra-wideband antenna has the advantages of ultra wide band, good directivity, low standing-wave ratio, small volume, lightness, low profile, low cost, easy processing, easy circuit integration, relatively low manufacturing cost, high precision and repeatability. The antenna which achieves great impedance match is suitably used for miniaturized equipment. Batch production is further facilitated.