A planar antenna for digital television, wherein the planar antenna for digital television comprises a substrate, and a low-frequency radiation line and a high-frequency radiation line arranged on the substrate, the length of the low-frequency radiation lines being one quarter of a wavelength corresponding to the VHF frequency band, and the length of the high-frequency radiation lines being one quarter of a wavelength corresponding to the UHF frequency band. Under the condition of ensuring that the existing overall size of the antenna remains the same, by adding a low-frequency radiation line on the substrate, and making the length of the high-frequency radiation line being one quarter of the wavelength corresponding to the UHF frequency band, and making the length of the low-frequency radiation line being one quarter of the wavelength corresponding to the VHF frequency band, the planar antenna for digital television of the present utility model realizes full-frequency reception of the planar antenna for digital television, enhances the low-frequency receiving capability of the digital planar antenna, and optimizes the UHF gain.